Java Topics

Topics Introduction Features of Java About JDK, JRE & JVM Install Jdk
Variables Data Types Operators Conditions Loops Methods Type Casting String Class
Concrete Class Objects Abstraction Encapsulation Inheritence Polymorphism Exceptions Abstract Class Interface File I/O
Overview List Queue Set Map
Basics Programming List 2022 Interview Questions & Answers

Variables

  • Variable in Java is a data container that stores the data values during Java program execution.
  • Every variable is assigned data type which designates the type and quantity of value it can hold.
  • Variable is a memory location name of the data.

The Java variables have mainly three types : 

  1. Local Variable
  2. Instance Variable
  3. Static Variable

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