Author - Mathan Lal

Final Keyword Final keyword can be used with class, variable and methods. final keyword in a method declaration to indicate that the method cannot be...

Static keyword In this section we discuss the clear use of static keyword, this static keyword can be used in both variable (excludes local variable) and...

Method overriding: Overriding is creating an instance method in a subclass with the same signature (name, plus the number and the type of its parameters) and...

Constructor overloading in Java The Java programming language supports overloading constructor, You cannot write two constructors that have the same number and...

Method Overloading Java programming language supports overloading methods, and Java can distinguish between methods with different method signatures...

Polymorphism: Polymorphism literally means taking more than one form. Polymorphism is one of the OOPs feature that allows us to perform a single action in...

Inheritance: Inheritance is the process of reusing the code used in similar class, or a class that is derived from another class is called a subclass (also...

Constructor: Constructor can be used to initialize member variable during object creation. Creating empty object can be avoided by writing parameterized...

Methods: Methods add behavior to our class or helps us to write reusable code. Example calculating salary, printing employee information etc for our Employee...

Member variable: Member variables in a class?these are called fields. Member variable become the place to hold all necessary information about the class...

Objects: Objects or we called it as an instance that are created based on class and holds the copy of member variable and methods. In the following figure e1...

Class: In object-oriented programming technique, we design a program using objects and classes. A class is the blueprint in which a template can be formed, in...

To create a simple java program, you need to create a class that contains the main method. Let’s get into the practical example. Step 1: Open a notepad...

This tutorial shows you how to install java in windows 10.

 IS-A HAS-A Relationship IS-A refers to inheritance or implementation. IS-A is expressed with the keyword extends. HAS-A means an instance of a class, member...

Java Programming Language Lambda Expressions, a new language feature, has been introduced in this release. They enable you to treat functionality as a method...