Array doubt

[Shweta R Dhaneshwar]

 class Arrays
 
{
private static int[] x;
public static void main(String[] args) 
{
System.out.println(x[0]);
}
} 

for the code above I had expected the o/p to be 0.Arrays are initialized irrespective of their location.This being a primitive int array,I had expected the o/p to be 0,where as ,when this piece of code is run we get a runtime exception(NullPointerException).Please explain why?

[vidya sagar]

HI

U have created only reference not allocated space for it,once you allocated space then default value will be stored.

change this line to

private static int[] x;

this

private static int[] x=new int[10];

Then Ur expected result will arrive