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About SELENIUM WEBDRIVER-3

Why WebDriver-3? In present market we have a tool called IDE. It is a tool which works only on Mozilla firefox. It has many drawbacks and doesn’t generate proper reports. IDE is not a preferred tool because sometimes when the scripts run, it finds the locator and sometimes it doesn’t find it and so the script fails. So, to overcome all these challenges we have a tool called WebDriver. WebDriver works on Multiple browsers like Firefox, IE, Chrome, Safari, Opera etc. It supports multiple languages like Java, C#, Ruby, Python and JavaScript. With WebDriver, we can make dynamic scripts like scripts on Webpages which changes everyday and we can make our scripts run on multiple browsers. Downloading WebDriver-3 Jars and configuring in eclipse To start with WebDriver, the first thing we need to do is to download WebDriver Jars and configure it in Eclipse IDE. We need to download Jar files of WebDriver from the official website of Selenium, which is Selenuimhq.org where we need to go to download section and under the download section, we will see the latest version which is 3.4.0. Click on the link and file will be downloaded in the downloads folder. Also, click on Change log at Selenium website to describe what has changed in the new version. The last 2.x version was 2.53 which is a stable build, meaning it has no major issues. After 2.53, the next build which came up was 3.XX. The changes made in 3.0 is that, minimum java version requires 1.8, where we need to make sure that jdk8 is installed. Installing Java To install java, Go to Google and type download Jdk. Go to first link as shown below Depending upon the system, we need to install either Windows x32 or Windows x64 bit and accept the License Agreement. For downloading Java, we need to click on Download link, where Zip file will be downloaded on our PC. Go to downloaded folder and extract it and double click on exe. Java will be installed in the system and now we need to configure the class path. If we are using v2.53.0 version, then we will be needing Firefox 40 or below. In case, we are using 3.0 then we need to go for latest version of Firefox. Configuring Jar Files in Eclipse Step1: Open Eclipse and make a New Project (ex:Sample) Step2: Right click on the project and select the option Properties as shown below Step3: Go to Java Build Path > Libraries Tab and click on Add External Jars as shown below: Now, go to the location where we saved our Jar Files and add all the jar files. It will appear like below image after adding all Jar files: Once we are done with configuring Jar files in eclipse, we can see a folder called Referenced Libraries under Project folder where we have all our Jar Files. Architecture of selenium webdriver 3 First we need to know a few concepts if we want to understand the working of Selenium WebDriver Architecture. Language Binding or Selenium Client Library Selenium API Remote WebDriver Json Wired Protocol WebDrivers Language Binding or Selenium Client Library : It is nothing but a collection of Jar files, where the language in which we write our selenium framework is present. It means that the language which we used to write the script may be Java, C#, Ruby, Python, perl. Selenium API : API Stands for Application Programming Interface. API is a particular set of rules and specifications that software programs can follow to communicate with each other. API serves as an interface between software program and facilitate their interaction. API is a software to software interaction which means API works between software to software. With the help of APIs, applications talk to each other without any user knowledge. Remote WebDriver : It is an implementation class of the webdriver interface that a test script developer can use to execute their test script through webdriver server on remote machine. JSON:  It stands for JavaScript Object Notation. It is a lightweight data interchange format which helps us to interchange the data. JSON is used to transfer data between client and server on the web. A simple JSON file has .json extension. JSON wired protocol send data in JSON format. Thereafter, the server will firstly parse the data and execute it and after that, response given by the server will be sent back to the client in JSON format. Webdriver: Webdriver is a tool for automating web applications and verifying that     they work as expected.  Architecture: Tester writes script in any language like java, C# etc and selenium client library will communicate with selenium API. Selenium API will send the command taken from language level binding to browser driver with the help of JSON wired protocol and sends the request to Browser Driver, it may be Firefox driver, IE driver, Chrome driver. When we run all the commands we write in the script, it is converted with JSON wired protocol over HTTP and it will convert into URL and the request made by the HTTP and send to the browser. These browser drivers will use the HTTP server for getting HTTP request and these HTTP Server filter out all commands which we need to execute. Drivers for Firefox, IE, Chrome FirefoxDriver: It is an inbuilt class in Selenium. Lets create a New Class in Eclipse Class Name: Drivers_Selenium Inside main function, create an object of FirefoxDriver class like shown below: FirefoxDriver is an inbuilt class inside Referenced Libraries jars, where we can move mouse over the error and import FirefoxDriver class. After creating the object and running the program, we will get an exception like “The path to the driver executable must be set by the webdriver.gecko.driver system property” like shown in below image. import org.openqa.selenium.firefox.FirefoxDriver; public class Drivers_Selenium { public static void main(String[] args) { // TODO Auto-generated method stub new FirefoxDriver(); } } Steps to Download Geckodriver exe file: Step1: Go to seleniumhq.org Step2: Click on Download Tab Step3: Click on Mozilla Geckodriver 0.16.1 version in browsers session Step4: Click on geckodriver-v0.17.0-win64.zip or geckodriver-v0.17.0-win32.zip based upon our operating system. Open the downloaded folder and extract it, after extracting we will get geckodriver.exe file like shown below image. Now there is no need to double click on the geckodriver file, all we need is to set the System property known as “webdriver.gecko.driver” and we have to give the path of  geckodriver exe file. As java is a case sensitive language make sure that “webdriver.gecko.driver” is in lower case. Run the program where we can see a blank firefox getting opened. Now we need to give object reference as “FirefoxDriver fd” so that we can use the features of FirefoxDriver object. Inside the documentation of selenium, we find WebDriver interface. Inside this interface, we see a function get( ) which loads the new webpage in the current browser window. It open up a new URL.We can use the function “fd.get ” and get the URL. Run the above program where we can see the browser launching and it opens yahoo.com ChromeDriver : As the name suggests, it is for chrome. After creating the object and running the program, we will get an exception like “The path to the driver executable must be set by the webdriver.chrome.driver system property”.Now we also need to download an exe file.Go to download session in seleniumhq.org and scroll down where we find Google Chrome Driver link and click on it and it will redirect to the next page. From here we can download based upon our operating system as shown in below image.Whatever be the operating system, whether it is 32xbit or 64xbit, we can download the same file. Open the downloaded folder and extract it, after extracting we will get “chromedriver” file like shown in the below image. Now, there is no need to double click on chromedriver file, all we need to do is set the System property known as “webdriver.chrome.driver” and we have to give the path of chromedriver.exe file. As java is a case sensitive language, make sure that “webdriver.chrome.driver” is in lower case. Run the above program where we can see a blank chrome browser will launch. Now we need to give object reference as “ChromeDriver ” so that we can use the features of ChromeDriver object. Inside the documentation of selenium, we find WebDriver interface.Inside this interface we see a function get( ) which loads the new webpage in the current browser window. It opens up a new URL.We can use the function “cd.get ” and get the URL. Run the above program where we can see the Chrome browser launching and open it on yahoo.com IEDriver: As the name suggests it is for InternetExplorer. After creating the object and running the program, we will get an exception like “The path to the driver executable must be set by the webdriver.ie.driver system property”.Now we also need to download an exe file.Go to download session in seleniumhq.org and scroll down where we find IE Driver link and click on it and it will reside to next page from here we can download based upon our operating system, as shown in the below image.What ever be the operating system, whether it is 32xbit or 64xbit, we can download the same file. Open the downloaded folder and extract it, after extracting we will get “ieDriver” file. Now no need of double click on iedriver file, all we need is to set the System property known as “webdriver.ie.driver” and we have to give the path of  ie exe file. As java is a case sensitive language, make sure that “webdriver.ie.driver” is in lowercase. Now we need to give object reference as “IEDriver ” so that we can use the features of IEDriver object.Inside the documentation of selenium, we find WebDriver interface. Inside this interface, we see a function get( ) which loads the new webpage in the current browser window. It opens up a new URL.We can use the function “ie.get ” and get the URL. Run the above program where we can see the IE browser launching and open it in yahoo.com Launching Browsers Dynamically Let us Create New Class “Launch Browsers” Let us build a Testcase. Now our requirement is that we have a parameter called browser. If we write parameter as “Mozilla”, then the script we write in testcase should run in Mozilla browser. If we write a parameter as “Chrome”, it should run on chrome. Later on, we read this parameter from an excel file (xls) or any other file like property file, xml file. If our browser is Mozilla then below script should execute on Mozilla. If the browser is Mozilla then we want to launch the FirefoxDriver and take this FirefoxDriver to launch our desired website. In the above example, we keep on repeating the line to launch any website like fd.get(“http://gmail.com”). Later on if we want to click on a link in firefox then we need to write the code for each browsers separately. To overcome this, we use a concept called Interface reference points towards the class implementing the interface. WebDriver   d = new FirefoxDriver( ); WebDriver   d1= new ChromeDriver( ); Webdriver is an Interface and FirefoxDriver, ChromeDriver, IEDriver are implementing that Interface. Here d1 is  pointing towards chrome, so we can make d1 point towards FirefoxDriver as well , because the reference of the webdriver interface can point towards any implementing class or we can make d1 point towards InternetExplorerDriver as well, like shown below. d1 = new FirefoxDriver( ); d1 = new InternetExplorerDriver( ); So in the beginning of the program we can write WebDriver driver  =  null; Here Null means that driver is not pointing anywhere. So based on our choice, we can make driver point towards FirefoxDriver (or) ChromeDriver (or) InternetExplorerDriver as shown in the below program. Initially driver is “null”. Based on the options, driver will be initialized and we can give the command driver.get(“http://gmail.com”); All the driver classes will have same set of functions coming from WebDriver Interface, so “get” function will be there in all the driver classes. From the above program, we can launch the browser dynamically and we have to write a single script after launching the browser to interact with the browser. We do not need to write browser specific script. The reasons are : firstly all the drivers have same set of functions and secondly, the driver can point towards any of the driver classes like ChromeDriver, IEDriver. Selenium RC and WebDriver What is Firefox profile Let’s take an example where we have a PC at our place, being shared by two people. If the first person opens the PC and goes to Firefox, then firefox should get opened and it should have 1st person set of settings, his own set of bookmarks, his own set of plugins installed inside it. If a 2nd person opens PC and goes to Firefox, he should have his own set of settings, his own set of bookmarks, his own set of plugins. This concept is know as Firefox Profile. Importance of Firefox profile First where selenium launches Firefox, we write- driver  = new FirefoxDriver( ); Selenium will create its own profile and launch the browser. That profile is created programmatically by selenium and it gets destroyed when the script stops. Creating Profile manually on our PC Go to Firefox browser -> Go to File option and select Exit to close the firefox from the Exit menu, we should not close the firefox from the (x) option on the top as shown in below image. Go to windows session and type “firefox.exe -p profilemanager”. Copy the command and it will open the window as shown below. Click on Create Profile and give name as Selenium_Mod11. Click on the Finish button and click Start Firefox button where a new firefox browser will open up and this firefox browser will be like freshly installed firefox on our machine. It will have no bookmarks, no plugins, no history etc. Go to Firefox browser and bookmark the page as shown below Create a New Class -> Selenium_Profiles Run the program where it will open Firefox browser with Google Bookmark as shown in below image Close and Quit Difference driver.quit( ): It will end selenium session and close all browsers in the current session. Suppose we go to a website and click on a link, that link will open in new pop-up and if we fire driver.quit( ), then selenium will close all the browsers and end the selenuim session. driver.close( ): It won’t end selenuim session, but it closes the browser on which current focus is there. Importing Webdriver documentation in eclipse. Go to seleniumhq.org –> Go to download session and click Javadoc link and copy the URL. “https://selenium.dev/selenium/docs/api/java/index.html” and go to the project -> Right click and go to Properties->Go to Java Build Path and expand the link and click on the Javadoc location: (None). Click on Edit button and paste the URL and remove index.html and click on validate button and click OK button. Webdriver Desired Capabilities Class It helps us understand Selenium, and under which circumstances the script should run. Below example shows how we should run script on Mozilla with Javascript enabled on a windows platform.  

About SELENIUM WEBDRIVER-3

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About SELENIUM WEBDRIVER-3

Why WebDriver-3?

In present market we have a tool called IDE. It is a tool which works only on Mozilla firefox. It has many drawbacks and doesn’t generate proper reports. IDE is not a preferred tool because sometimes when the scripts run, it finds the locator and sometimes it doesn’t find it and so the script fails. So, to overcome all these challenges we have a tool called WebDriver.

WebDriver works on Multiple browsers like Firefox, IE, Chrome, Safari, Opera etc. It supports multiple languages like Java, C#, Ruby, Python and JavaScript. With WebDriver, we can make dynamic scripts like scripts on Webpages which changes everyday and we can make our scripts run on multiple browsers.

Downloading WebDriver-3 Jars and configuring in eclipse

To start with WebDriver, the first thing we need to do is to download WebDriver Jars and configure it in Eclipse IDE. We need to download Jar files of WebDriver from the official website of Selenium, which is Selenuimhq.org where we need to go to download section and under the download section, we will see the latest version which is 3.4.0. Click on the link and file will be downloaded in the downloads folder.

Also, click on Change log at Selenium website to describe what has changed in the new version. The last 2.x version was 2.53 which is a stable build, meaning it has no major issues. After 2.53, the next build which came up was 3.XX. The changes made in 3.0 is that, minimum java version requires 1.8, where we need to make sure that jdk8 is installed.

Installing Java

  1. To install java, Go to Google and type download Jdk.
  2. Go to first link as shown below

Depending upon the system, we need to install either Windows x32 or Windows x64 bit and accept the License Agreement. For downloading Java, we need to click on Download link, where Zip file will be downloaded on our PC. Go to downloaded folder and extract it and double click on exe. Java will be installed in the system and now we need to configure the class path.

If we are using v2.53.0 version, then we will be needing Firefox 40 or below. In case, we are using 3.0 then we need to go for latest version of Firefox.

Configuring Jar Files in Eclipse

  • Step1: Open Eclipse and make a New Project (ex:Sample)
  • Step2: Right click on the project and select the option Properties as shown below

  • Step3: Go to Java Build Path > Libraries Tab and click on Add External Jars as shown below:

Now, go to the location where we saved our Jar Files and add all the jar files. It will appear like below image after adding all Jar files:

Once we are done with configuring Jar files in eclipse, we can see a folder called Referenced Libraries under Project folder where we have all our Jar Files.

Architecture of selenium webdriver 3

First we need to know a few concepts if we want to understand the working of Selenium WebDriver Architecture.

  1. Language Binding or Selenium Client Library
  2. Selenium API
  3. Remote WebDriver
  4. Json Wired Protocol
  5. WebDrivers
  1. Language Binding or Selenium Client Library : It is nothing but a collection of Jar files, where the language in which we write our selenium framework is present. It means that the language which we used to write the script may be Java, C#, Ruby, Python, perl.
  2. Selenium API : API Stands for Application Programming Interface. API is a particular set of rules and specifications that software programs can follow to communicate with each other. API serves as an interface between software program and facilitate their interaction. API is a software to software interaction which means API works between software to software. With the help of APIs, applications talk to each other without any user knowledge.
  3. Remote WebDriver : It is an implementation class of the webdriver interface that a test script developer can use to execute their test script through webdriver server on remote machine.
  4. JSON:  It stands for JavaScript Object Notation. It is a lightweight data interchange format which helps us to interchange the data. JSON is used to transfer data between client and server on the web. A simple JSON file has .json extension. JSON wired protocol send data in JSON format. Thereafter, the server will firstly parse the data and execute it and after that, response given by the server will be sent back to the client in JSON format.
  5. Webdriver: Webdriver is a tool for automating web applications and verifying that     they work as expected.

 Architecture:

Tester writes script in any language like java, C# etc and selenium client library will communicate with selenium API. Selenium API will send the command taken from language level binding to browser driver with the help of JSON wired protocol and sends the request to Browser Driver, it may be Firefox driver, IE driver, Chrome driver. When we run all the commands we write in the script, it is converted with JSON wired protocol over HTTP and it will convert into URL and the request made by the HTTP and send to the browser. These browser drivers will use the HTTP server for getting HTTP request and these HTTP Server filter out all commands which we need to execute.

Drivers for Firefox, IE, Chrome

  • FirefoxDriver: It is an inbuilt class in Selenium. Lets create a New Class in Eclipse

Class Name: Drivers_Selenium

Inside main function, create an object of FirefoxDriver class like shown below:

FirefoxDriver is an inbuilt class inside Referenced Libraries jars, where we can move mouse over the error and import FirefoxDriver class. After creating the object and running the program, we will get an exception like “The path to the driver executable must be set by the webdriver.gecko.driver system property” like shown in below image.

import org.openqa.selenium.firefox.FirefoxDriver;

public class Drivers_Selenium {

public static void main(String[] args) {

// TODO Auto-generated method stub

new FirefoxDriver();

}

}

Steps to Download Geckodriver exe file:

Step1: Go to seleniumhq.org

Step2: Click on Download Tab

Step3: Click on Mozilla Geckodriver 0.16.1 version in browsers session

Step4: Click on geckodriver-v0.17.0-win64.zip or geckodriver-v0.17.0-win32.zip based upon our operating system.

Open the downloaded folder and extract it, after extracting we will get geckodriver.exe

file like shown below image.

Now there is no need to double click on the geckodriver file, all we need is to set the System property known as “webdriver.gecko.driver” and we have to give the path of  geckodriver exe file. As java is a case sensitive language make sure that “webdriver.gecko.driver” is in lower case.

Run the program where we can see a blank firefox getting opened.

Now we need to give object reference as “FirefoxDriver fd” so that we can use the features of FirefoxDriver object. Inside the documentation of selenium, we find WebDriver interface. Inside this interface, we see a function get( ) which loads the new webpage in the current browser window. It open up a new URL.We can use the function “fd.get ” and get the URL.

Run the above program where we can see the browser launching and it opens yahoo.com

  • ChromeDriver : As the name suggests, it is for chrome. After creating the object and running the program, we will get an exception like “The path to the driver executable must be set by the webdriver.chrome.driver system property”.Now we also need to download an exe file.Go to download session in seleniumhq.org and scroll down where we find Google Chrome Driver link and click on it and it will redirect to the next page. From here we can download based upon our operating system as shown in below image.Whatever be the operating system, whether it is 32xbit or 64xbit, we can download the same file.

Open the downloaded folder and extract it, after extracting we will get “chromedriver” file like shown in the below image.

Now, there is no need to double click on chromedriver file, all we need to do is set the System property known as “webdriver.chrome.driver” and we have to give the path of chromedriver.exe file. As java is a case sensitive language, make sure that “webdriver.chrome.driver” is in lower case.

Run the above program where we can see a blank chrome browser will launch.

Now we need to give object reference as “ChromeDriver ” so that we can use the features of ChromeDriver object. Inside the documentation of selenium, we find WebDriver interface.Inside this interface we see a function get( ) which loads the new webpage in the current browser window. It opens up a new URL.We can use the function “cd.get ” and get the URL.

Run the above program where we can see the Chrome browser launching and open it on yahoo.com

  • IEDriver: As the name suggests it is for InternetExplorer. After creating the object and running the program, we will get an exception like “The path to the driver executable must be set by the webdriver.ie.driver system property”.Now we also need to download an exe file.Go to download session in seleniumhq.org and scroll down where we find IE Driver link and click on it and it will reside to next page from here we can download based upon our operating system, as shown in the below image.What ever be the operating system, whether it is 32xbit or 64xbit, we can download the same file.

Open the downloaded folder and extract it, after extracting we will get “ieDriver” file.

Now no need of double click on iedriver file, all we need is to set the System property known as “webdriver.ie.driver” and we have to give the path of  ie exe file. As java is a case sensitive language, make sure that “webdriver.ie.driver” is in lowercase.

Now we need to give object reference as “IEDriver ” so that we can use the features of IEDriver object.Inside the documentation of selenium, we find WebDriver interface. Inside this interface, we see a function get( ) which loads the new webpage in the current browser window. It opens up a new URL.We can use the function “ie.get ” and get the URL.

Run the above program where we can see the IE browser launching and open it in yahoo.com

  • Launching Browsers Dynamically

Let us Create New Class “Launch Browsers”

Let us build a Testcase. Now our requirement is that we have a parameter called browser. If we write parameter as “Mozilla”, then the script we write in testcase should run in Mozilla browser. If we write a parameter as “Chrome”, it should run on chrome. Later on, we read this parameter from an excel file (xls) or any other file like property file, xml file.

If our browser is Mozilla then below script should execute on Mozilla. If the browser is Mozilla then we want to launch the FirefoxDriver and take this FirefoxDriver to launch our desired website.

In the above example, we keep on repeating the line to launch any website like fd.get(“http://gmail.com”). Later on if we want to click on a link in firefox then we need to write the code for each browsers separately. To overcome this, we use a concept called Interface reference points towards the class implementing the interface.

WebDriver   d = new FirefoxDriver( );

WebDriver   d1= new ChromeDriver( );

Webdriver is an Interface and FirefoxDriver, ChromeDriver, IEDriver are implementing that Interface. Here d1 is  pointing towards chrome, so we can make d1 point towards FirefoxDriver as well , because the reference of the webdriver interface can point towards any implementing class or we can make d1 point towards InternetExplorerDriver as well, like shown below.

d1 = new FirefoxDriver( );

d1 = new InternetExplorerDriver( );

So in the beginning of the program we can write

WebDriver driver  =  null;

Here Null means that driver is not pointing anywhere. So based on our choice, we can make driver point towards FirefoxDriver (or) ChromeDriver (or) InternetExplorerDriver as shown in the below program. Initially driver is “null”. Based on the options, driver will be initialized and we can give the command driver.get(“http://gmail.com”);

All the driver classes will have same set of functions coming from WebDriver Interface,

so “get” function will be there in all the driver classes.

From the above program, we can launch the browser dynamically and we have to write a single script after launching the browser to interact with the browser. We do not need to write browser specific script. The reasons are : firstly all the drivers have same set of functions and secondly, the driver can point towards any of the driver classes like ChromeDriver, IEDriver.

  • Selenium RC and WebDriver

  • What is Firefox profile

Let’s take an example where we have a PC at our place, being shared by two people. If the first person opens the PC and goes to Firefox, then firefox should get opened and it should have 1st person set of settings, his own set of bookmarks, his own set of plugins installed inside it. If a 2nd person opens PC and goes to Firefox, he should have his own set of settings, his own set of bookmarks, his own set of plugins. This concept is know as Firefox Profile.

  • Importance of Firefox profile

First where selenium launches Firefox, we write-

driver  = new FirefoxDriver( );

Selenium will create its own profile and launch the browser. That profile is created programmatically by selenium and it gets destroyed when the script stops.

  • Creating Profile manually on our PC

Go to Firefox browser -> Go to File option and select Exit to close the firefox from the Exit menu, we should not close the firefox from the (x) option on the top as shown in below image.

Go to windows session and type “firefox.exe -p profilemanager”. Copy the command and it will open the window as shown below.

Click on Create Profile and give name as Selenium_Mod11. Click on the Finish button and click Start Firefox button where a new firefox browser will open up and this firefox browser will be like freshly installed firefox on our machine. It will have no bookmarks, no plugins, no history etc.

Go to Firefox browser and bookmark the page as shown below

Create a New Class -> Selenium_Profiles

Run the program where it will open Firefox browser with Google Bookmark as shown in below image

  • Close and Quit Difference

driver.quit( ): It will end selenium session and close all browsers in the current session.

Suppose we go to a website and click on a link, that link will open in new pop-up and if we fire driver.quit( ), then selenium will close all the browsers and end the selenuim session.

driver.close( ): It won’t end selenuim session, but it closes the browser on which current focus is there.

  • Importing Webdriver documentation in eclipse.

Go to seleniumhq.org –> Go to download session and click Javadoc link and copy the URL.

https://selenium.dev/selenium/docs/api/java/index.html” and go to the project -> Right click and go to Properties->Go to Java Build Path and expand the link and click on the Javadoc location: (None).

Click on Edit button and paste the URL and remove index.html and click on validate button and click OK button.

  • Webdriver Desired Capabilities Class

It helps us understand Selenium, and under which circumstances the script should run. Below example shows how we should run script on Mozilla with Javascript enabled on a windows platform.

 

Raghav

Raghav Globalservices

Blog Author

Raghav has 8+ years of experience with 7+ years of experience in Automation Testing using Selenium, Appium, Ranorex tools etc. in multiple project domains. He is a Consultant &amp; Trainer has trained more than 6000+ US, UK, Russian &amp; Indian students &amp; is a corporate Trainer for several MNCs. <a href="https://www.linkedin.com/in/aroraraghav/" rel="no follow">linkedin.com</a>

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These two programming languages have been around for many decades. Colleges and universities all over the world teach these as the base language. To get global recognition for the C and C++ certification, C++ Institute and Pearson VUE decided to carve a niche in this part of the certification landscape by offering the world's first international C/C++ certifications.Aspirants and professionals can choose either C or C++ as a career option/path and climb the certification ladder from associate to professional to senior. The C Programming Language Certified Associate (CLA) and C++ Certified Associate Programmer (CPA) are the core and first-level C and C++ certifications.CLA comprises of topics likeIntroduction to compiling and software development;Basic scalar data types and their operators;Flow control;Complex data types: arrays, structures and pointers;Memory management;Files and streams;Structuring the code: functions and modules;Preprocessor directives and complex declarations.CPA comprises of topics likeIntroduction to compiling and software development;Basic scalar data types, operators, flow control, streamed input/output, conversions;Declaring, defining and invoking functions, function overloading;Data aggregates;String processing, exceptions handling, dealing with namespaces;Object-oriented approach and its vocabulary;Dealing with classes and objects, class hierarchy and inheritance;Defining overloaded operators, user-defined operators, exceptions;Demand and Benefits: Having a CLA certification verifies that the programmer or the aspirant has an understanding of all the necessary and essential universal concepts of computer programming and developer tools. The course also covers all the syntax and semantics of different C constructs plus the data types offered by the language. This course brings crisp knowledge on writing programs using standard language infrastructure regardless of the hardware or software platform.A C++ Certified Associate Programmer (CPA) certification will give you an upper hand because it comprises syntax and semantics of the C++ language plus basic C++ data types. Apart from that, it contains principles of the object-oriented model and C++ implementation. Also, you will get to know about the various C++ standard libraries through this certification process. The average entry-level salary of a C/C++ developer with this certification will be $ 7,415 per annum. With two to three years of experience, the average salary hikes to $ 10,593 annually.Top companies and industries hiring CLA and CPA are Philips, Calsoft Pvt. Ltd., Cognizant, Synopsys Inc., private universities, Mphasis, etc.Where to take Training for Certification: CPP Institute has all the study resources you need to prepare for this examination. Apart from that, you can study from YouTube free resources.Who should take the Training (roles) for Certification: Any programmer or computer science aspirant - who wants to expand their knowledge of C/C++ or start their career as a C/C++ programmer or developer can opt for this certification course. There is no other prerequisite to appear for this exam.Course fees for Certification:CLA Certification: $ 147.50 (50% discount voucher)CPA Certification: $ 147.50 (50% discount voucher)Exam fee for certification:CLA Certification: $ 295CPA Certification: $ 295Retake fee for certification: Aspirants who have paid the complete exam price (USD 295) or have completed a course aligned with certification in the self-study mode (50% discount voucher) can have a free retake of the CPA or CLA exam. There is no limit to the number of times a candidate may retake the exam. You must wait 15 days before being allowed to re-sit that exam.2. Oracle Certified Associate Java Programmer OCAJPThis is a Java programming certification provided by Oracle. Java is among the most popular programming languages. James Gosling is the creator of Java which was earlier named Oak. It is a robust, high-level, general-purpose, pure object-oriented programming language developed by Sun Microsystems (now part of Oracle). Java consistently tops the 'most used programming languages’ list and is one of the most extensively used software development platforms. If you have the plan to get a proper training course online before appearing for the certification exam, KnowledgeHut (https://www.knowledgehut.com/programming/java-training) has that for you.It is the preliminary and most basic certification provided by Oracle for Java. It helps gain fundamental understanding of Java programming and builds a foundation in Java and other general programming concepts. The certification encompasses two subcategories –OCAJP Java Standard Edition 8 (OCAJP 8) and  OCAJP Java Standard Edition 11 (OCAJP 11)It comprises of topics likeJava BasicsWorking with Java Data TypesUsing Operators and Decision ConstructsCreating and Using ArraysUsing Loop ConstructsWorking with Methods and EncapsulationWorking with InheritanceHandling ExceptionsClass Methods and EncapsulationDescribing and Using Objects and ClassesHandling ExceptionsJava Technology and the Java Development EnvironmentInheritance and InterfacesUnderstanding ModulesUsing Operators and Decision ConstructsWorking with Java ArraysWorking with Selected classes, Java Primitive Data Types and String APIsDemand and Benefits: Having an OCAJP certification verifies that the aspirant has all the necessary and essential skills to become an expert Java developer. This certification also helps in getting an internship or entry-level jobs in different organizations. The entry-level salary of a junior Java developer with this certification is $ 3670 per annum; when the candidate gathers two to three years of experience, the average salary hikes to $ 5430 annually.Top companies and industries hiring Oracle Certified Associate Java Programmers are Smart Monitor Pvt. Ltd., Fiserv, Micron Semiconductor Asia Pvt. Ltd., private universities and many others.Where to take Training for Certification: KnowledgeHut has a fascinating course opportunity for beginners in Java programming. It has workshops with hands-on learning and 40 hours of instructor-led online lectures. Apart from that, Oracle also provides exam vouchers for this certification course.Who should take the Training (roles) for Certification: Any programmer or computer science aspirant - who wants to settle as a Java developer or start his/her career as a Java programmer can opt for this certification course. There is no other prerequisite to appear for this exam.Course fee for Certification: $ 245Application fee for certification:OCAJP8: $ 245OCAJP11: $ 249Exam fee for certification:OCAJP8: $ 245OCAJP11: $ 255Retake fee for certification: Aspirants can retake the exam if the exam voucher has a free retake option. If the exam retake option is available, one can opt for the exam after 14 days.3. Certified Associate in Python Programming (PCAP)Python is an interpreted, general-purpose, and high-level programming language developed by Guido Van Rossum. Python released in 1991 and within 5 to 6 years, this programming language become the most popular and widely used programming language in various disciplines. Today, companies use Python for GUI and CLI-based software development, web development (server-side), data science, machine learning, AI, robotics, drone systems, developing cyber-security tools, mathematics, system scripting, etc. PCAP is a professional Python certification credential that measures your competency in using the Python language to create code and your fundamental understanding of object-oriented programming.It comprises of topics likeBasic concepts of PythonOperators & data typesControl and EvaluationsModules and PackagesData AggregatesException HandlingStringsFunctions and ModulesObject-Oriented ProgrammingList Comprehensions, Lambdas, Closures, and I/O OperationsClasses, Objects, and ExceptionsDemand and Benefits: Having a Python certification verifies that the programmer or the aspirant has all the necessary and essential skills needed to become an expert Python developer. This certification also helps in getting an internship or entry-level jobs in different organizations. The average entry-level salary of a Python developer starts at around $100k per annum. With a few years of experience, the average salary hikes to $ 105k annually.Top companies and organizations hiring certified Python programmers are Bank of America, Atlassian, Google, Adobe, Apple, Cisco Systems, Intel, Lyft, IBM, etc.Where to take Training for Certification: KnowledgeHut has a fascinating course opportunity for beginners in Python programming. It has hands-on learning with 24 hours of instructor-led online lectures. Apart from that, the course has 100 hours of MCQs and three live projects.Who should take the Training (roles) for Certification: Any programmer, graduate, post graduate student, or computer science aspirant - who wants to pursue a career as a Python developer or  Python programmer can opt for this certification training. There is no other prerequisite to appear for this exam.Course fees for Certification:  $ 295Exam fee for certification: $ 295Retake fee for certification: If a candidate fails the exam, he/she has to wait for 15 days before being allowed to retake the exam for free. There is no limit to the number of times a candidate may retake an exam.4. MongoDB Certified Developer Associate ExamMongoDB is a NoSQL, document-based high-volume heterogeneous database system. Instead of having tables with rows and columns, MongoDB uses a collection of documents. It is a database development system that provides scalability and flexibility as per query requirements. Its document models are easy to implement for developers and can meet complex demands at scale.MongoDB created this MongoDB Certified Developer Associate Exam for individuals who require to verify their knowledge on fundamentals of designing and building applications using MongoDB. They recommend this certification for those who want to become software engineers and have a solid understanding of core MongoDB along with professional experience.It comprises of topics likeMongoDB BasicsCRUDIndexing and PerformanceThe MongoDB Aggregation FrameworkBasic Cluster AdministrationAggregation & ReplicationShardingMongoDB Performance  MongoDB for Python DevelopersMongoDB for Java Developers or MongoDB for JavaScript DevelopersData ModelingDemand and Benefits: Having a MongoDB Certified Developer Associate Exam certification verifies that the programmer or the aspirant has all the necessary and essential skills to become a NoSQL database expert. The MongoDB certification is inexpensive and in demand. The average salary for a software developer with MongoDB skills starts from $ 8200 per annum.Top companies and organizations hiring certified MongoDB developers are Accenture, Collabera, Leoforce LLC., Adobe, Trigent Software, Lyft, etc.Where to take Training for Certification: KnowledgeHut has a comprehensive course structure for those who want to learn MongoDB & Mongodb Administrator. It has 24+ hours of instructor-led online lectures and 80+ hours of hands-on with cloud labs. This self-paced course also includes capstone projects to give participants a feel of real world working.  Who should take the Training (roles) for Certification: Any programmer, graduate, post graduate student, experienced developer or computer science aspirant - who wants to embark on a career as a MongoDB developer or start his/her career as a NoSQL database expert or do better in their current role as a MongoDB developer can opt for this certification course. There is no other prerequisite to appear for this exam.Course fees for Certification:  $ 150Exam fee for certification: $ 150Retake fee for certification: MongoDB University is no longer allowing a free retake with the exam fee. The candidate has to pay an additional $10 to reschedule or retake the exam.5. R Programming CertificationIt is a part of the data science specialization from Johns Hopkins University under Coursera. This course teaches R programming for efficient data analysis. It covers different R programming concepts like building blocks of R, datatypes, reading data into R from external files, accessing packages, writing functions, debugging techniques, profiling R code, and performing analysis.It comprises of topics like:Basic building blocks in RData types in RControl StructuresScoping Rules - OptimizationCoding StandardsDates and TimesFunctionsLoopingDebugging toolsSimulating data in RR ProfilerDemand and Benefits: Having an R Programming certification verifies that the programmer or the aspirant has all the necessary and essential skills require to get a job role as data analyst. This certification also helps in getting an internship or entry-level jobs in different organizations and firms. The average salary of a certified R programmer with this certification is ₹ 508,224 per annum.Top companies and industries hiring certified R programmers are Technovatrix, CGI Group Inc., Amazon, Sparx IT Solutions, Accenture, Uber, etc.Where to take Training for Certification: KnowledgeHut has a fascinating training course for those who wants to become a R programmer. It has 22+ hours of instructor-led live training and three self-paced live projects.Who should take the Training (roles) for Certification: Any data analyst, graduate, post graduate student, experienced data analyst or computer science aspirant - who wants to settle as a R programmer or data analyst can opt for this certification course. There is no other prerequisite to appear for this exam. Course fees for Certification: FreeFee for certification: $ 60 (Coursera Plus Monthly)Retake fee for certification: Free6. Oracle MySQL Database Administration Training and Certification (CMDBA)It is another course offered by Oracle for SQL developers. Oracle University designed this course for database administrators who want to validate their skills with developing performance, blending business processes, and accomplishing data processing work. Structured Query Language (SQL) is one of the top database management query languages that allows us to access and manipulate databases. If you want to verify your database skills during a job interview or impress your peers at your workplace then this certification is worth getting. This certification path includes Professional, Specialist, and Developer levels. The candidate should pass the MySQL Database Administrator Certified Professional Exam Part 1 & Part 2 to earn the certification.It comprises of topics likeInstalling MySQLMySQL ArchitectureConfiguring MySQLUser ManagementMySQL SecurityMaintaining a Stable SystemOptimizing Query PerformanceBackup StrategiesConfiguring a Replication TopologyDemand and Benefits: Having an CMDBA certification verifies that the programmer or the aspirant has all the necessary and essential skills required to get a job role as SQL developer. This certification also helps in getting an internship or entry-level jobs in different organizations and firms. The average salary of a certified MySQL DBA or backend developer with this certification is $ 66,470 per annum.Top companies and industries hiring Certified MySQL database administrators are Fiserv, IBM, HCL, Adobe, Microsoft, Apple, Accenture, Collabera, and more.Where to take Training for Certification: KnowledgeHut has a cutting-edge curriculum for those who want to become  MySQL database administrators. It has 16+ hours of instructor-led online lectures and 80+ hours of hands-on lab. Apart from that, this self-paced course has Capstone projects.Who should take the Training (roles) for Certification: Any developer, graduate, post graduate student, experienced developer or computer science aspirant - who wants to pursue a career as a DBA or backend developer or start his/her career in database management or backend software development can opt for this certification course. There is no other prerequisite to appear for this exam or course.Course fees for Certification: $ 255Exam fee for certification: $ 255Retake fee for certification: Aspirants can retake the exam if the exam voucher has a free retake option. If the exam retake option is available, one can opt for the exam after 14 days after the initial attempt.7. CCA Spark and Hadoop DeveloperWith the exponential growth in data, IT firms and organizations have to manage this tremendous amount of data generated. So, many companies are actively looking for Big data and Spark developers who can optimize performance. Big Data is the term used to describe enormous volumes of data. Apache Spark supports data management as it is an open-source centralized analytics engine that handles large-scale data processing.It requires prerequisite knowledge of Scala and Python. This certification also verifies and showcases your skills through Spark and Hadoop projects. Passing this certification course gives you a logo and a license to authenticate your CCA status.It comprises of topics likeLoad data from HDFS for use in Spark applicationsWrite the results back into HDFS using SparkRead and write files in a variety of file formatsPerform standard extract, transform, load (ETL) processes on data using the Spark APIUse metastore tables as an input source or an output sink for Spark applicationsUnderstand the fundamentals of querying datasets in SparkFilter data using SparkWrite queries that calculate aggregate statisticsJoin disparate datasets using SparkProduce ranked or sorted dataSupply command-line options to change your application configuration, such as increasing available memoryDemand and Benefits: Passing the CCA Spark and Hadoop Developer Exam (CCA175) by Cloudera verifies that you have all the essential skills required to get a job as a Hadoop developer and handle Big data projects. The average salary of a certified CCA Spark and Hadoop Developer with this certification is $ 74,200 per annum.Top companies and industries hiring Certified Spark and Hadoop Developers are Primus Global, IBM, Collabera, CorroHealth, Genpact, Xerox, Accenture, and more.Where to take Training for Certification: KnowledgeHut has extensive courses for those who want to become Big Data experts and want to work as Hadoop developers. It has different courses on Big Data Analytics, Apache Storm, Hadoop Administration, Apache Spark & Scala, Big Data with Hadoop, and more.Who should take the Training (roles) for Certification: Any Big Data developer, graduate & post graduate students, Hadoop developer or computer science aspirant - who wants to make a career in Big data development or start his/her career as a Big Data or Hadoop project developer can opt for this certification course. There is no other prerequisite to appear for this exam.Course fees for Certification: $ 295Application fee for certification: $ 295Exam fee for certification: $ 295Retake fee for certification: Within 30 to 60 minutes of exam completion, Cloudera will send a scorecard mail with a pass or fail status. If the candidate fails the exam, then they have to wait for 30 days for another try.  Cloudera gives additional discounts on retakes.ConclusionWhether you are starting your career as a coder or are an experienced programmer looking to grow in the industry, having a certification and proper knowledge of any popular programming language is one of the most proven ways to elevate your programming career.  We trust that this article will help you to understand your area of interest. Choose the programming language you wish to make a career in, wisely. This would also depend on your pre-existing knowledge. If you aren't sure which resource will be more informative for doing your certification as per your area of interest, KnowledgeHut (https://www.knowledgehut.com/) has all the support and expert trainers who can guide you, from start to finish—that is in clearing the exam and helping you gain sound knowledge of your preferred subject.Receiving a programming certification is an added bonus which will make you stand out from the rest. Proper training from an institute such as KnowledgeHut will help you gain skills that are relevant and in demand in the industry.
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Most Popular Programming Certifications for 2021

Programming is at the core of software development... Read More

Top IT Certifications for Java Developers in 2021

Programming languages are at the heart of computer science and software development. They help developers write efficient code for developing digital solutions through applications and websites. Programming helps in automating, maintaining, assembling, and measuring the processed data.  Java is one such popular programming language. It is a robust, high-level, general-purpose, pure object-oriented programming language developed by Sun Microsystems (now part of Oracle). James Gosling is the creator of Java which was earlier named Oak. Java ranks high in the top programming languages list and is one of the most extensively used software development platforms. It is well suited to developing software solutions and other innovative projects and simulations.  Since Oracle acquired Sun Microsystems in January 2010, they have been responsible for the further development of the Java platform. All the mentioned top Java certifications verify a specific expertise level and knowledge of the Java platform highlighting particular domains. Without further due, let us now dig into the top 5 Java certifications and their details. About Oracle’s Java CertificationsOrganizations and industries consider certifications as proof of knowledge, especially when the certifications are from a recognized body or firm. Aspirants and professionals looking for possibilities in the Java development domain can avail of a plethora of benefits through the certifications mentioned in this article. There are six levels of Oracle Java Certification based on job roles, skills, and responsibilities: Oracle Certified Junior Associate (OCJA) Oracle Certified Associate (OCA) Oracle Certified Professional (OCP) Oracle Certified Specialist (OCS) Oracle Certified Expert (OCE) Oracle Certified Master (OCM) Among them, the top five Java certifications that are in demand for the year 2021 are – 1. Oracle Certified Associate Java Programmer OCAJP (Applicable for Java SE 8 & Java SE 11)It is the preliminary and most basic certification provided by Oracle for Java. It helps you gain fundamental understanding of Java programming and build a foundation in Java and other general programming concepts. There are two subcategories in this certification – OCAJP Java Standard Edition 8 (OCAJP 8) and  OCAJP Java Standard Edition 11 (OCAJP 11) OCAJP8 comprises of topics like  Creating and Using Arrays Handling Exceptions Java Basics Using Loop Constructs Using Operators and Decision Constructs Working with Inheritance Working with Java Data Types Working with Methods and Encapsulation Working with Selected classes from the Java API OCAJP11 comprises of topics like Applying Encapsulation Creating and Using Methods Creating Simple Java Programs Describing and Using Objects and Classes Handling Exceptions Java Technology and the Java Development Environment Programming Abstractly Through Interfaces Reusing Implementations Through Inheritance Understanding Modules Using Operators and Decision Constructs Working with Java Arrays Working with Java Primitive Data Types and String APIs Demand and Benefits: Having an OCAJP certification verifies that the programmer or the aspirant has all the necessary and essential skills to become an expert Java developer. This certification also helps in getting an internship or entry-level jobs in different organizations. The entry-level salary of a junior Java developer with this certification is $ 3670 per annum; when the candidate gathers two to three years of experience, the average salary hikes to $ 5430 annually.   (Source: Glassdoor) Top companies and industries hiring Oracle Certified Associate Java Programmers are Smart Monitor Pvt. Ltd., Fiserv, Micron Semiconductor Asia Pvt. Ltd., and more. Where to take Training for Certification: KnowledgeHut has a fascinating course, designed for beginners in Java programming. It offers hands-on learning with 40 hours of instructor-led online lectures. Apart from that, Oracle also provides exam vouchers for this certification course. Who should take the Training (roles) for Certification: Any programmer or computer science aspirant - who wants to be a Java developer or start his/her career as a Java programmer can opt for this certification course. There is no other prerequisite to appear for this exam. Course fees for Certification:  $ 245 Application fee for certification: $ 245 Exam fee for certification: $ 245 Retake fee for certification: Aspirants can retake the exam if the exam voucher has a free retake option. If the exam retake option is available, one can opt for the exam after 14 days. 2) Oracle Certified Professional Java Programmer OCPJPIt is a professional-level certification program provided by Oracle for Java developers. It verifies the candidates' knowledge and professional expertise. Using this certification, aspirants and other hard-core Java programmers can distinguish themselves from those Java professionals who are not certified. It comes in the second level of Oracle's Java Certification list. There are two subcategories of this certification – OCPJP Java Standard Edition 8 (OCPJP 8) and  OCPJP Java Standard Edition 11 (OCPJP 11) This certification is preferable if someone has professional experience with Java or has already worked for some years in Java technology.  OCPJP8 comprises of topics like: Advanced Class Design Building Database Applications with JDBC Concurrency Exceptions and Assertions Generics and Collections Java Class Design Java File I/O (NIO.2) Java I/O Fundamentals Java Stream API Lambda Built-in Functional Interfaces Localization Use Java SE 8 Date/Time API OCPJP11 comprises of topics like: Annotations Built-in Functional Interfaces Concurrency Database Applications with JDBC Exception Handling and Assertions Functional Interface and Lambda Expressions Generics and Collections I/O (Fundamentals and NIO.2) Java Fundamentals Java Interfaces Java Stream API Lambda Operations on Streams Localization Migration to a Modular Application Parallel Systems Secure Coding in Java SE Application Services in a Modular ApplicationDemand and Benefits: Once you are a certified Professional Java Programmer (OCPJP), you can switch to better salary slabs and organizations that hire senior Java developers. This certification also helps in getting internal promotions as Java developers in different organizations and firms. The average salary of a certified professional Java developer is $ 5300 - $ 8610 per annum. Top companies and industries hiring Oracle Certified Professional Java Programmers are Oracle, Capgemini, Morgan Stanley, Chetu, Mphasis, etc. Where to take Training for Certification: KnowledgeHut has a fascinating course opportunity for Java developers and professionals for learning intermediate Java topics. It has hands-on learning with 32 hours of instructor-led online lectures. Apart from that, Oracle also provides exam vouchers for this certification course. Who should take the Training (roles) for Certification: Any Java programmer who wants to apply for a senior Java developer's role or start his/her career as a Java programmer can opt for this professional certification course. There is no other prerequisite to appear for this exam. Course fees for Certification: $ 245 Application fee for certification: $ 245 Exam fee for certification: $ 245 Retake fee for certification: Aspirants can retake the exam if the exam voucher has a free retake option. If the exam retake option is available, one can opt for the exam after 14 days.3. Oracle Certified Expert - Web Component Developer OCEWCDIt is an intermediate-level course offered by Oracle for Java web developers. The Oracle Certified Expert Web Component Developer is for web developers who want to write web applications using Java. Through this course, they can prove their expertise in developing web apps using JSP and Servlet technologies. It verifies your expertise in Servlet 3.0 and helps in creating dynamic Web content and Web services.  It comprises of topics like Understanding Java EE Architecture Managing Persistence using JPA entities and Bean Validation Implementing business logic using EJBs Using Java Message Service API Implement SOAP Services using JAX-WS and JAXB APIs Creating Java Web Applications using Servlets and JSPs Implementing REST Services using JAX-RS API Creating Java Applications using WebSockets Developing Web Applications using JSFs Securing Java EE 7 Applications Using CDI Beans Demand and Benefits: You can opt for this course once you are a certified Professional Java Programmer (OCPJP) or certified associated Java programmer. This certification course will help you get a job in organizations having rigorous work in Servlet, Java Server Page, JSF, and web microservices. The average salary of a certified professional Java developer is $ 8,850 - $ 11,930 per annum. Top companies and industries hiring Oracle Certified Web Component Developers are Amdocs, IBM, Oracle, Capgemini, SAP, Shine, Byjus, etc. Where to take Training for Certification: KnowledgeHut has a fascinating course opportunity for Java web developers (. It has hands-on learning with instructor-led online lectures and live projects. Apart from this, you can get online training from Oracle University as wellWho should take the Training (roles) for Certification: Any programmer or computer science aspirant who wants to settle as a Java web developer or start his/her career as a Java web content and web service developer can opt for this certification course. As a prerequisite, you have to pass the OCPJP to opt for this certification.  Course fees for Certification:  $ 245 Application fee for certification: $ 245 Exam fee for certification: $ 245 Retake fee for certification: Aspirants can retake the exam if the exam voucher has a free retake option. If the exam retake option is available, one can opt for the exam after 14 days. 4. Oracle Certified Professional Java Application Developer (OCPJAD)It is an advanced-level course offered by Oracle for Java application developers. The Oracle Certified Professional Java Application Developer (OCPJAD) is for software developers who want to write different applications and automation tools using Java. Through this course, developers can prove their expertise and abilities to develop and deploy applications through Java Enterprise Edition 7. OCPJAD is ideal for desktop application developers, frontend + backend app developers, software engineers, and application architects. It comprises of topics like Creating Batch API Developing CDI Beans Concepts of Concurrency Creating Java Applications with Web-Sockets Creating Java Web Applications with JSPs Developing Java Web Applications with Servlets Developing Web Applications with JSFs Implementing Business Logic with EJBs Performing REST Services with JAX-RS API Implementing SOAP Services with JAX-WS and JAXB APIs Java EE 7 system architecture Java EE 7 Security Techniques Java Message Service API Managing Persistence with JPA Entities and Bean-ValidationDemand and Benefits: Once you pass the Certified Professional Java Application Developer (OCPJAD), you can seek employment in organizations that work on critical application development and command higher salaries. This professional certification will give you exposure to develop APIs, implementing business logic using EJBs, create message services, and apply security systems. The average salary of a certified professional application developer is $ 9,800 - $ 13,910 per annum. Top companies and industries hiring Oracle Certified Professional Java Programmers are Oracle, Capgemini, NetSuite Inc., SAP, Cognizant, etc. Where to take Training for Certification: KnowledgeHut has a fascinating course opportunity with hands-on learning exposure and live projects. Apart from this, you can get online training from Oracle University as well. Who should take the Training (roles) for Certification: Any Java developer or full-stack application developer who wants to become a certified Java application developer or move to the specialized sector of API development using REST, security architect or software engineer can opt for this certification course. As a prerequisite, you should have passed the OCAJP certification.  Course fees for Certification:  $ 245 Application fee for certification: $ 245 Exam fee for certification: $ 245 Retake fee for certification: Aspirants can retake the exam if the exam voucher has a free retake option. If the exam retake option is available, one can opt for the exam after 14 days.5. Oracle Certified Master Java Enterprise Architect (OCMJEA)Large-scale development and service firms have different critical applications and systems to develop, manage, and maintain. Such systems require full-stack developers and specialized professionals with proven skills. Such organizations and MNCs hire only highly experienced professionals and specialists who can supervise the extensive operation, architect the defects, and define & develop systems as per requirements. The Oracle Certified Master Java Enterprise Architect (OCMJEA) is one of the most prestigious Java certifications a Java developer can achieve.  It comprises of topics like Architect Enterprise Applications through Java EE Developing Applications for the Java EE 6 Developing Applications for the Java EE 7 Developing Applications with Java EE 6 on WebLogic Server 12c Java Design Patterns Java EE 6: Develop Business Components with JMS & EJBs Java EE 6: Develop Database Applications with JPA Java EE 6: Develop Web Services with JAX-WS & JAX-RS Java EE 7: New Features Java SE 7: Develop Rich Client Applications Java SE 8: Programming Java SE 8 Fundamentals Object-Oriented Analysis and Design Using UML, etc. Demand and Benefits: Once you pass the Certified Master Java Enterprise Architect course, you get the essential skills and understanding of how to execute application development on an enterprise level. Such an experienced professional gains full-stack Java development skills. They get hired with the responsibility of undertaking Java projects from the very start to their final delivery. Many Certified Master Java Enterprise Architects work as managers or senior managerial roles in industries and firms. The average salary of a certified professional application developer is $ 14,000 - $ 19,210 per annum. Top companies and industries hiring Oracle Certified Professional Java Programmers are IBM, Oracle, Microsoft, HCL, Capgemini, NetSuite Inc., SAP, Cognizant, Atlassian, etc. Where to take Training for Certification: KnowledgeHut has a fascinating Java course  with hands-on learning exposure and a live project. Apart from that, a professional can train himself through ILT (Instructor-Led-in-Class), Learning Subscription, TOD (Training on Demand), LVC (Live Virtual Class), or classes delivered by Oracle Authorized Education Center . Other Oracle Authorized Partner Oracle Academy, Oracle University Training Center, or Oracle Workforce Development Program can also benefit and train you in this course.  Who should take the Training (roles) for Certification: Any Java developer or full-stack application developer who wants to move to a senior role in the enterprise-level or want to become a manager or team lead can opt for this certification course. As a prerequisite, you need to have passed the OCPJP certification.  Course fees for Certification:  $248 Application fee for certification: $ 248 Exam fee for certification: $ 248 Retake fee for certification: Aspirants can retake the exam if the exam voucher has a free retake option. If the exam retake option is available, one can opt for the exam after 14 days. Java is an evergreen programming language and is here to stay, at least for the next couple of decades. A vast community of professionals and entry-level aspirants enjoy the benefit of this pure object-oriented, class-based, multi-paradigm, high-level programming language. Java Certification requires proper training.KnowledgeHut has the required infrastructure and quality education faculty, both online and offline, to train aspirants for these Oracle Certifications. It caters to well-structured, industry-oriented Java certification training, explicitly designed to serve the candidates according to the latest industry needs. Getting proper training from KnowledgeHut will help aspirants master core knowledge of Java plus equip themselves with the industry standards to manage large projects. 
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Top IT Certifications for Java Developers in 2021

Programming languages are at the heart of comput... Read More

Best Python Certifications of 2021

Programming is always at the core of computer science and Information Technology. Every year millions of programmers graduate with a degree and look for opportunities in the job market. The demand for programmers is growing exponentially, and this demand is not going anytime soon. Python was released by Python Software Foundation in 1991, and in just a few years, has become the most popular and widely used programming language in various disciplines.Python is an interpreted, general-purpose, and high-level programming language developed by Guido Van Rossum. Today, companies use Python for GUI and CLI-based software development, web development (server-side), data science, machine learning, AI, robotics, drone systems, developing cyber-security tools, mathematics, system scripting, etc.According to TIOBE index, Python ranks second among all other programming languages. KnowledgeHut has some fascinating advanced-level courses on Python, such as Machine Learning using Python and Artificial Intelligence using Python.Once you gain expertise in writing Python programs, candidates can start learning advanced-level Python libraries and modules such as Pandas, SciPy, NumPy, Matplotlib, etc. There are different options one can explore after learning Python. These are data analysis, machine learning, cybersecurity, automation, web scraping, etc.Top Python Certifications of 2021Certified Entry-Level Python Programmer (PCEP) Certified Associate in Python Programmer (PCAP) Introduction to Programming Using Python by Microsoft Certified Professional in Python Programming 1 & 2 (PCPP 1 & 2) Certified Expert in Python Programming (PEPP) During the course of your Python certification training and exam preparation, you will develop different real-world projects and get familiar with case studies. Also, there will be hands-on lab experiences in Python programming. In this article, you will get to know the top five Python certifications of 2021 that can give you the launchpad you need to embark on a successful career.   1. Certified Entry-Level Python Programmer (PCEP): The PCEP is an entry-level Python certification. To enroll in this course, you need to have a basic understanding of how procedural programming works. Also, some knowledge of flowcharts and algorithm creation will benefit you. Through this certification, an aspirant can gain the core and fundamental understanding of Python. This certification from the Python Institute will make you proficient in Python programming and help you become a Python certified professional. Aspirants and professionals can choose Python as a career option/path and climb the Python Institute’s certification ladder from associate to professional.PCEP comprises of topics like Basic formatting and outputting methods Handling Boolean values Compilation vs. interpretation Constants, Variables and Variable naming conventions Defining user-defined functions Fundamentals of computer programming Inputting and converting Data Logical vs. bitwise operations in Python Looping and control statements Lists New data aggregates: Tuples and Dictionaries The assignment operator Primary kinds of data and numerical operators Rules governing the building of expressions Working with multi-dimensional arrays Different slicing operations Demand and Benefits: Having a PCEP certification verifies that the programmer or the aspirant has knowledge of all the necessary and fundamental Python concepts. The course also covers all the syntax and semantics of different Python constructs & data types offered by the language. This course brings crisp knowledge on general coding techniques using standard language infrastructure and basic programming skills using Python. The average entry-level salary of a Python programmer with this certification will be $ 5660 per annum. Top companies and industries hiring PCEP are Philips, Cataleya Pvt. Ltd., Deloitte, Zynga, Mphasis, VMware, etc.Where to take Training for Certification: Python Institute has all the study resources you need to prepare for this examination. Apart from that, you can join the Python course offered by KnowledgeHut  that has 24 hours of instructor-led training covering the core programming concepts like operators, control flow, functions, syntax & indentations. Who should take the Training (roles) for Certification: Any programmer or computer science aspirant, who wants to learn Python or start an internship or entry-level job as Python programmer can opt for this certification course. There is no other prerequisite to appear for this exam. Course fees for Certification: $ 295 Application fee for certification: $ 295 Exam fee for certification: $ 295 Retake fee for certification: If a candidate fails the exam, he/she can wait 15 days before being allowed to retake the exam for free. There is no limit on the number of times a candidate may retake the exam.2. Certified Associate in Python Programmer (PCAP):PCAP is another important second-level or associate-level certification exam for Python. This course and certification will give you the confidence to measure your skill and complete the Python-based coding tasks. It also facilitates competing for competitive coding sessions. This course also comprises the essential notions and concepts related to object-oriented programming. With this associated-level certification, you can stand unique in the competitive job market. PCAP comprises of topics like Basic formatting and outputting methods Python basics Using Boolean values Compilation vs. interpretation Variables and variable naming conventions Defining and using functions Fundamentals of computer programming Fundamentals of OOP  How to use OOPs in the Python programming language Generators and closures Inputting and converting of data Logical vs. bitwise operations Looping and control statements File processing for Python developers Name scope issues New data aggregates: tuples and dictionaries Primary kinds of data and numerical operators Python modules Inheritance in Python Rules for creating expressions Working with multi-dimensional arrays Strings, lists, and other Python data structures The assignment operator The concept of exceptions and implementation Demand and Benefits: Having a PCAP certification verifies that the programmer or the aspirant has all the necessary and essential concepts of intermediate-level Python programming. The course also covers all the fundamental concepts of different Python constructs & fundamentals of OOP. This course brings crisp knowledge on general coding techniques using standard language infrastructure and basic programming skills using Python. The approximate salary of a Python programmer with this certification will be $7000 to $11,262 per annum. Top companies and industries hiring PCAP are CareCentrix, Accenture, Deutsche Bank, Collabera, NetApp, Capgemini, Tech Mahindra, Myntra, etc. Where to take Training for Certification: Python Institute (https://pythoninstitute.org/free-python-courses/) has all the study resources you need to prepare for this examination. You can also get a comprehensive training by enrolling for the Python course offered by KnowledgeHut (https://www.knowledgehut.com/programming/python-programming-certification-training) that has 24 hours of instructor-led training covering the core programming concepts like operators, control flow, functions, syntax & indentations. Who should take the Training (roles) for Certification: Any programmer or computer science aspirant, who wants to build a career in Python or pursue an associate-level job as a Python programmer or developer, can opt for this certification course. There is no other prerequisite to appear for this exam. Course fees for Certification: $ 295 Application fee for certification: $ 295 Exam fee for certification: $ 295 Retake fee for certification: If a candidate fails the exam, he/she can wait 15 days before being allowed to retake the exam for free. There is no limit to the number of times a candidate may retake an exam. 3. Introduction to Programming Using Python by MicrosoftIt is another popular entry-level Python certification by Microsoft (https://docs.microsoft.com/en-us/learn/certifications/exams/98-381). This certification covers all the syntax, data types, and basic understanding of Python. It also teaches how to logically solve any problem using Python constructs. Candidates wanting to enroll for this course are expected to have had some instruction or hands-on experience of approximately 100 hours with the Python programming language, including debugging skills, logic development, understanding conditional & decision-making statements, and maintaining well-formed well documented Python code. Microsoft’s Introduction to Programming Using Python comprises of topics like Basics of Python Using Boolean values Fundamentals of computer programming Interpretations Variables and variable naming conventions Defining and using functions Indexing and slicing operations Type conversions Basic formatting and outputting Data Types and Operators Control Flow with Decisions and Loops Construct Data structures Jump Statements Perform Input and Output Operations Document and Structure Code Comments and white-spaces Perform Operations Using Modules and Tools Demand and Benefits: Having a Microsoft certification verifies that the Python programmer or the aspirant has all the necessary and fundamental Python concepts. The course also covers all the syntax and semantics of different Python constructs & data types offered by the language. Anyone with this certification will have a better understanding of core Python, and the candidate can stand out in the competitive exams from the rest. The average entry-level salary of a Python programmer with this certification will be $ 5660 per annum. Top companies and industries hiring Python professionals with this credential are Cataleya Pvt. Ltd., Zynga, VMware, Mphasis, Deloitte, Capgemini, etc. Where to take Training for Certification: Microsoft has a paid five-day instructor-led course to prepare for this examination. Apart from that, you can join the Python course offered by KnowledgeHut that has 24 hours of instructor-led training covering the core programming concepts like operators, control flow, functions, syntax & indentations. Who should take the Training (roles) for Certification: Any programmer or computer science aspirant, who wants to learn Python or start an internship or entry-level job as Python programmer, can opt for this certification course. There is no other prerequisite to appear for this exam. Course fees for Certification: $ 127 Application fee for certification: $ 127 Exam fee for certification: $ 127 Retake fee for certification: Exam retake is free. If the candidate fails to achieve a passing score on the first attempt, he/she must wait 24 hours before retaking the exam. 4. Certified Professional in Python Programming 1 & 2 (PCPP 1 & 2):Once you sound knowledge of the core concepts of Python or have 3 to 5 years of experience in Python programming, you may prepare for professional Python certification. Certified Professional in Python Programming 1 certifications will reflect your experience and programming skills in the following areas: Text File Handling GUI-based Programming Encapsulation Inheritance Advanced Object-Oriented Programming PEP conventions Metaprogramming Communicating with a program's environment Using Libraries and Modules Importing math, science, and engineering modules Having this globally recognized credential will make you stand out in a competitive job market. Many recruiting agencies and firms are looking for professional Python programmers who can develop and deploy applications. Certified Professional in Python Programming 2 (PCPP2) is another advanced-level professional certification course offering proficiency in Python-MySQL database handling. Certified Professional in Python Programming 2 certification will reflect your experience and programming skills in the following areas: Basic directory structure CRUD operations Design patterns Observer and Proxy Singleton and State Design Template Method Model-View-Controller using Python Multiprocessing, threading, subprocess, and multiprocessor synchronization Relational database management using Python MySQL and SQL commands Sharing, storing and installing packages Network programming in Python Application testing techniques and principles Demand and Benefits: Having a PCPP certification verifies that the Python developer has all the necessary and essential skills of a professional Python programmer. The course covers all the advanced object-oriented programming concepts, GUI programming, etc. This course brings crisp knowledge for experienced professionals to make them stand out in the software development industry. The approximate salary of a Python programmer with this certification will be $ 12,053 to $ 14,700 per annum. Top companies and industries hiring PCPP certified professionals are Dell, Accenture, SG Analytics, HCL, Oracle, Capgemini, Tech Mahindra, Flipkart, etc. Where to take Training for Certification: Python Institute has all the study resources you need to prepare for this examination. Apart from that, you can join the Python course offered by KnowledgeHut that has 32 hours of instructor-led training covering the advanced programming concepts like database handling, OOPs, logical layout, data visualization, etc. Who should take the Training (roles) for Certification: Any professional, programmer, or experienced Python developer - who wants to settle as a senior Python developer or pursue an experienced-level job as a Python programmer or developer can opt for this certification course. The candidate should have the Certified Associate in Python Programmer (PCAP) certification or few years of work experience in Python. Course fees for Certification: $ 195 Application fee for certification: $ 195 Exam fee for certification: $ 195  Retake fee for certification: If a candidate fails the exam, he/she can wait 15 days before being allowed to retake the exam for free. There is no limit to the number of times a candidate may retake an exam. 5. Certified Expert in Python Programming (CEPP):This Python certification tag is for experts who complete all the OpenEDG Python Institute's Programming certification program (PCAP-31-xx, PCPP-32-1-xx, and PCPP-32-2-xx exams). It is the most advanced credential a Python developer can achieve from the Python Institute. Having this globally recognized credential will verify your expertise in Python programming. It highlights expertise in the universal concepts of Python programming. Also, this certification showcases the skills in resolving typical implementation challenges on different verticals of Python. Demand and Benefits: Having a CEPP certification verifies that the Python developer has industry level expertise in Python. This certification designates that the candidate has covered all the topics from basics to advance object-oriented programming concepts, GUI programming, etc. Using this certification, one can apply for a senior software development role, Python developer’s role, team lead, agile project management lead, and other senior job roles. Many professionals switch their careers to Big Data, Data Analytics, Machine learning, and deep learning after completing this certification. The approximate salary of a Python programmer with this certification will be $ 17,350 to $ 39,945 per annum. Top companies and industries hiring CEPPs are Amazon, Tesla, HSBC, Google, HCL, Oracle, Capgemini, Qualcomm, 6sense, Vitrana, and other top service-based companies. Where to take Training for Certification: Python Institute has all the study resources you need to prepare for PCAP-31-xx, PCPP-32-1-xx, and PCPP-32-2-xx examination. Once a candidate has passed all the certifications, he/she becomes recognized as an Open EDG Python Institute Certified Expert in Python Programming (CEPP). Who should take the Training (roles) for Certification: Any professional, Python expert, or senior Python developer, who wants to settle as a team lead or pursue an experienced-level job profile can opt for these certifications to reach at this level.  Course fees for Certification: $ 295 + $ 295 + $ 195 Application fee for certification: $ 295 + $ 295 + $ 195 Exam fee for certification: $ 295 + $ 295 + $ 195  Retake fee for certification: There is no retake fee Conclusion We trust this article gave you a better insight into different Python certifications! Whether you are starting out as a coder, or are an experienced Python programmer looking at making a splash in the industry, having a Python certification and proper knowledge of Python will elevate your programming career. Python is one of the top programming languages that can help you land different jobs in web development, app development, data science, cybersecurity, networking, web scraping, robotics, IoT, etc. If you aren't sure which online resource will be more informative for your Python certification, KnowledgeHut (https://www.knowledgehut.com/) has all the study materials and expert trainers who will help you reach the pinnacle of Python expertise. Receiving a Python certification, apart from academics and degrees, will make you stand out from the rest. So, start preparing for one today! 
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Best Python Certifications of 2021

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