Another java.lang.ArrayIndexOutOfBoundsException

[vasil angelov]

Can anyone tell me why j gets the value of y, instead of 0 in the following snippet?

import java.util.Scanner;
public class matrix 
{
	public int x,y;
	public void init(int[][] matrix1)
	{
		int i;
		int j;
		Scanner input = new Scanner(System.in);
		System.out.printf("Enter x:");
		x=input.nextInt();
		System.out.printf("Enter y:");
		y=input.nextInt();
		matrix1 = new int[x][y];
		
		for( i=0 ; i<x ; i++)
		{	
			for( j=0 ; j<y ; j++);
			{
				//System.out.println("enter:");
				System.out.printf("%d %d",i,j);
				matrix1[i][j]=0;
			 
			}
		}
	}
}

[Nepomuk]

At which point to you get the value of y for j? The inner for-loop will increase j until it's equal to y, but that's the idea, right? Or are you having problems understanding how a for-loop works?

[vasil angelov]

I solved it.The problem was at line 18 - i haven't noticed the semi-column after the for-loop.

[Nepomuk]

Ah, one of those mistakes you easily make but are difficult to find... Well done for doing so yourself! :-)

Greetings,
Nepomuk