An attempted at solving this: http://blog.jazzychad.net/2012/08/01/array-iteration-problem.html

possiblePhoneScreen.java

/*
This is a attempted at coding this up: http://blog.jazzychad.net/2012/08/01/array-iteration-problem.html
Did it in about 15 mins... I might use this for a phone screen questions.

I did use Sublime Text... but that's fine I think.
*/
public class Main {

	public static void main(String[] args) {
		// # add1 [1,4,1,5,1], 1, 0 -> [2,4,2,5,2]
		// # add1 [1,4,1,5,1], 1, 2 -> [2,4,2,5,1]
		// # add1 [1,4,1,5,1], 1, -2 -> [1,4,2,5,2]
		Main.run(new int[] {1,4,1,5,1}, 1, 0);
		Main.run(new int[] {1,4,1,5,1}, 1, 2);
		Main.run(new int[] {1,4,1,5,1}, 1, -2);
	}

	public static int[] run(int[] arr, int val, int n) {
		int count = (n == 0) ? Integer.MAX_VALUE : Math.abs(n);
		int i = (n < 0) ? arr.length-1 : 0;
		int inc = (i > 0) ? -1 : 1;

		for(int x = 0; x < arr.length; x++) {
			// If it matches
			if (arr[i] == val) {
				arr[i]++;
				count--;
			}
			i = i + inc;
			if (count <= 0) {
				break;
			}
		}
		return arr;
	}
}