Variables in Java | Instance Variables in Java | Local Variables in Java | Static Variables in Java

Variables are a way to store information in your computer. In java all variables must be declared before its use. Variables can be accessed by name we give to them & computer does the hard work of figuring out where they get stored in the computers random access memory (RAM). Variable names are case sensitive in Java.

THREE TYPES OF VARIABLES
1) LOCAL VARIABLES
2) INSTANCE VARIABLES
3) STATIC VARIABLES

There are lots of different type of data we can define for our variables. Collectively these are known as data types. Data types are keyword in Java. Let’s start out by defining a variable of type int which being an abbreviation for integer or any number without any decimal point.

To define a variable we need to specify data type, then give our variable a name and optionally add an expression to initialize the variable with a value.

Syntax :

 data_type data_name = data_intialization;

eg.

int count = 1;

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