Print Multi Dimention Array [MxN] in Spiral Form

Have four indexes: top, down, left and right which are gonna be used to point where we are gonna start printing rows and columns.

When 
    top > down OR left > right then we are DONE!!!!!


public class MultiDimSpiralPrint {
    public static void main(String[] args) {
        int[][] i = {
                {1, 2, 3},
                {4, 5 , 6},
                {7, 8, 9},
               };
        spiralOrder(i);

    }
   
    static void spiralOrder(int[][] matrix)
    {
         if(matrix.length == 0)
             return;
         
         // Initialize our four indexes
         int top = 0;
         int down = matrix.length - 1;
         int left = 0;
         int right = matrix[0].length - 1;
   
         while(true)
         {

// Print top row
             for(int j = left; j <= right; ++j) System.out.print(matrix[top][j] + " ");
             top++;
             if(top > down || left > right) break;
             

//Print the rightmost column
             for(int i = top; i <= down; ++i) System.out.print(matrix[i][right] + " ");
             right--;
             if(top > down || left > right) break;
             
//Print the bottom row
             for(int j = right; j >= left; --j) System.out.print(matrix[down][j] + " ");
             down--;
             if(top > down || left > right) break;
             
//Print the leftmost column
             for(int i = down; i >= top; --i) System.out.print(matrix[i][left] + " ");
             left++;
             if(top > down || left > right) break;
         }
     }
} 

OUTPUT
1 2 3 6 9 8 7 4 5  


NON SPIRAL PRINT is Easy
  int[][] i = {
                {1, 2, 3},
                {4, 5 , 6},
                {7, 8, 9},
               };
  
  for ( int[] inner : i) {
            for ( int result : inner) {
                System.out.println(result);
            }
        }

 OUTPUT 1 2 3 4 5 6 7 8 9