In this tutorial, we will understand the concepts of superclass and subclass in Java with the help of various examples. What is Inheritance in Java? Inheritance is one of the most powerful features of object-oriented programming (OOP) in Java. It…
In this tutorial, we have compiled 100+ frequently asked Java interview questions for Selenium testers. It covers almost all the important Java questions commonly asked during the Java technical interview round for Selenium automation testing. During interviews, the same question…
In the previous tutorial, we have explained the difference between abstract class and interface, which is one of the most popular questions in an interview. Now let’s understand the difference and comparison between class and interface in Java. In fact,…
In the previous tutorial, you may have noticed that abstract classes and interfaces have some similarities. For example, Both are used to achieving abstraction in Java. Both define abstract methods that do not require an implementation. They are also similar…
In the previous tutorial, we have seen that Java performs type conversion when you perform an arithmetic operation with unlike data types. For example, when you add an int and a double, the result is a double. In a similar…
The process of converting a value from one data type to another is known as type conversion in Java. Type conversion is also known as type casting in Java or simply ‘casting’. If two data types are compatible with each…
The “this“ keyword in Java is a reference variable that refers to the current class object. In other words, it holds a reference to the object whose method or constructor is currently being executed. The current class object can be…
What is Parallel Testing in TestNG? Parallel Testing is a testing technique in which multiple tests are executed simultaneously in different threads to reduce execution time. It allows us to execute multiple tests at the same time across different environments…
What is Testng.xml file? Testng.xml file is a configuration file (XML file) for TestNG in which we can create test suites, test groups, mark tests for parallel execution, add listeners, and pass parameters to test script. It defines the runtime…
