Problem of the Day

Problem:

Consider the following method which prints out values from the two-dimensional array arr.

public static void output(int[][] arr)
{

    /* missing code */

}

An array arr is declared and initialized as shown:

int[][] arr = {{0,1,2,3}, {4,5,6,7}, {8,9,10,11}};

Identify the code that will replace /* missing code */ to produce the output

11 7 3 10 6 2 9 5 1 8 4 0

1. 
   

   for (int y = arr.length - 1; y > 0; y--)
   {
       for (int x = arr[0].length - 1; x > 0; x--)
       {
           System.out.print(arr[x][y] + " ");
       }
   }

2. 
   

   for (int x = arr[0].length - 1; x > 0; x--)
   {
       for (int y = arr.length - 1; y > 0; y--)
       {
           System.out.print(arr[y][x] + " ");
       }
   }

3. 
   

   for (int x = arr[0].length - 1; x >= 0; x--)
   {
       for (int y = arr.length - 1; y >= 0; y--)
       {
           System.out.print(arr[y][x] + " ");
       }
   }

4. 
   

   for (int y = arr.length - 1; y >= 0; y--)
   {
       for (int x = arr[0].length - 1; x >= 0; x--)
       {
           System.out.print(arr[y][x] + " ");
       }
   }

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