Finding valid neighbors in 2D array

Question

So, I have a 4x4 2D array (it will always be these dimensions). Starting with a location on the array, some row and column, I want to find all of its valid neighbors. So far, I

Answer 1

This is my solution:

public int[4][4] array2d;
//don't forget to fill it!

private void adjustNeighbors(int xCoord, int yCoord) {

    for (int yi = y-1; yi <= yCoord+1; yi++) {         //loop through the neighbors

        for (int xi = x-1; xi <= xCoord+1; xi++) {

            try {

                if (!(xCoord != xi && yCoord != yi)) {
                    array2d[y][x]++;  //do whatever you want to all the neighbors!
                } 

            } catch (Exception e) {
                // something is out of bounds
            }

        }

    }

}