Java variable :How to declare a variable in Java

 

What is a variable ?

A variable is container that stores data , text or numbers. A variable must have a name and also data assigned to it. 

      SYNTAX

data_type  variable_name  =  value

  

Check this 

   int x = 5 ;

Int -- is a data type 

X -- variable name

= -- assignments operator

5 -- value

The best way to declare a variable is simply by declare the data type, state the variable name and then assign a value to it. We would discuss more on data types.

Here are some important things you should know when declaring a variable. 

They are :

• Variable names are case sensitive in Java

• Variable names must not have whitespace, something like this -- int num

Other examples are :

String firstName;

  Boolean isTall =  True;

  Int a , b , c ;

  

Let's move

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Java Basics

Introduction to Java programming

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Java Syntax

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Java data types

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Java Operators

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If, if..else statement in Java

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Java For loop

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While and do.. while loop in Java

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Break statement in Java

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Continue statement in Java

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Inheritance in Java

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