2d Integer array not running properly java android

Question

I am using an array like this:

int selIntIndex = Integer.valueOf(selStringIndex);

        int[][] PreIntVal = new int[][]


                {
                 { selIntIndex,
                        2 },
                 {
                        selIntIndex,
                        3 },
                 {
                        selIntIndex,
                        1 } };

        PreIntVal[3][0] = PreIntVal[4][0] = 3;

        android.util.Log.d("StripedLog",
                Arrays.toString(Values.PreStringVal[3]));

But somehow the code never reaches the "log" statement. The problem is with this line: PreIntVal[3][0] = PreIntVal[4][0] = 3; because if I comment it out, it works.

Any suggestions?

AllTooSir · Accepted Answer · 2013-07-20 05:38:16Z

3

This particular line PreIntVal[3][0] = PreIntVal[4][0] is causing ArrayIndexOutOfBoundsException. Look at the defined array's dimensions : new int[][] { { selIntIndex, 2 }, { selIntIndex, 3 }, { selIntIndex, 1 } };. It seems you are confused as to how to access the array elements using index , please go through Oracle tutorial.

The valid indexes for this array are [0,1,2][0,1].

Observe this diagram to understand how the indexes are mapped.

enter image description here

edited Jul 20, 2013 at 5:38

answered Jul 20, 2013 at 5:32

AllTooSir

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