[RESOLVED] Finding an empty cell in an array

[wldrumstcs]

Hi guys. I am very new to java and I have a question. I have created a 2-dimensional array filled with a bunch of zeroes. The user can input values into the cells, overwriting the zeroes. My question is how do I determine the location of the first cell on the first row with a value of 0? Below is an example array. I want to return the number 3 (the index of the first zero).

1 2 3 0 4 5
1 2 3 4 5 6
1 2 3 4 5 6

[SpS]

Have two for loops and compare every value of array with 0 and if match found do what is required.

eg code

for(int i=...){
 for(int j=...){
   if(0==array[i][j])
     return array[i][j];
   else{
   ... 
   }
 }
}

[ComputerJy]

This is your full code to return the "3" only:

public class Test {
  public static void main(String args[]) {
    int a[][] = {
        {
        1, 2, 3, 0, 4, 5}
        , {
        1, 2, 3, 4, 5, 6}
        , {
        1, 2, 3, 4, 5, 6}
    };
    System.out.println(findEmptyCell(a));
  }

  private static int findEmptyCell(int[][] a) {
    for (int i = 0; i < a.length; i++) {
      for (int j = 0; j < a[i].length; j++) {
        if (a[i][j] == 0) {
          return j;
        }
      }
    }
    return -1;
  }
}

[wldrumstcs]

Thanks!