Set Matrix Zeroes.java

Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in place.

Follow up:
Did you use extra space?
A straight forward solution using O(mn) space is probably a bad idea.
A simple improvement uses O(m + n) space, but still not the best solution.
Could you devise a constant space solution?

public class Solution {
    public void setZeroes(int[][] matrix) {
        int row = matrix.length;
        if (row == 0) return;
        int col = matrix[0].length;
        for (int i = 0; i < row; i++) {
            for (int j = 0; j < col; j++) {
                if (matrix[i][j] == 0) {
                    for (int k = 0; k < col; k++) {
                        if (matrix[i][k] != 0)
                            matrix[i][k] = -1;
                    }
                    for (int f = 0; f < row; f++) {
                        if (matrix[f][j] != 0)
                            matrix[f][j] = -1;
                    }
                }
            }
        }
        for (int i = 0; i < row; i++) {
            for (int j = 0; j < col; j++) {
                if (matrix[i][j] == -1) {
                    matrix[i][j] = 0;
                }
            }
        }
    }
}