Move Zeroes

public class Solution {
    public void moveZeroes(int[] nums) {
		int count = 0;
        for (int i = 0; i < nums.length; i++) {
			if (nums[i] != 0) {
				count++;
			}
		}
        int p = 0, q;
        while(p <  count && nums[p] != 0){
			p++;
		}
        q = p + 1;
        while (p < count) {
			while (nums[q] == 0) {
				q++;
			}
			nums[p] = nums[q];
			p++;
			q++;
		}
        for (int i = p; i < nums.length; i++) {
			nums[i] = 0;
		}
    }
}