1.

Difference between declaring a variable and defining a variable in Java

Answer»

Declaring a variable implies giving a DATA type to the variable such as int, float, char etc. An example of this is given as follows:

int val;

Defining a variable implies assigning a value to the declared variable. This value is stored in the variable. An example of this is given as follows:

val = 5;

A program that demonstrates declaring a variable and defining a variable in Java is given as follows:

public class Demo {   public static void main(STRING[] ARGS)   {       int val;    //declaring a variable       val = 5;   //defining a variable       System.out.println("val = " + val);   } }

The OUTPUT of the above program is as follows:

val = 5


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