Java Basics

What is an Object Oriented Programming(OOP) in Java?

Object Oriented Programming Concepts in Java

Types of Inheritances in Java

What is polymorphism in programming?

Method Overloading in Java with examples

Method overriding in java with example

Difference between method Overloading and Overriding in java 

Abstract vs Concrete methods in java 

Abstract Classes and Methods in Java 

What is encapsulation in Java ? 

Usage of Static class 

Usage of Static block 

Usage of static method 

Usage of Static Variables 

Final Keyword In Java – Final variable, Method and Class 

What is an Interface and how to implements & extend the interfaces?