help with simple java program

[leonard]

I did a simple program but I have a problem
this is the code

Code:

public class Test
{
private static int[] numbers=new int[4];
public static void main( String args[] )
{

  	for (int i = 1;i<=4;i++)  {
		numbers[i]=1;
	}

}

}

and this exception appears:

Code:

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 4
	at Test.main(PayrollProgramExecute.java:16)

any ideas?

[neel5_kumar]

try either
(int i=0;i<4;i++)//as index starts with 0
or
(int i=0;i<numbers.length;i++)//much better

[mirage_87]

in an array the indexing begins from 0 and not from one..
so the flaw in yr program is that u started with one and went till 4
instead u shld have done

Quote:

for (int i = 0;i<=3;i++)

this is because no element numbers[4] exist as the index is only from 0 to 3.....that's why the error.

private static int[] numbers=new int[4]; means u r creatin an array with four elements with index 0,1,2,3 and not 4.............
i guess you got the point...........

[Swamipsn]

public class ex1
{
private static int[] numbers=new int[4];
public static void main( String args[] )
{

for (int i = 0;i<=3;i++) {
numbers[i]=1;
}

}

}

Problem is you are trying to access numbers[4] obviously it has number[0]
to numbers[3], not numbers[4]