public static void main ( String arg [ ] ) {
  int matrix [ ] [ ] = {
    {
      0 , 1 , 2 }, {
        3 , 4 , 5 }, {
          6 , 7 , 8 }
        };
        swapDiagonal ( matrix ) ;
        for ( int i = 0 ;
        i < N ;
        i ++ ) {
          for ( int j = 0 ;
          j < N ;
          j ++ ) System . out . print ( matrix [ i ] [ j ] + " " ) ;
          System . out . println ( ) ;
        }
      }
      
public static void main ( String arg [ ] ) { int matrix [ ] [ ] = { { 0 , 1 , 2 } , { 3 , 4 , 5 } , { 6 , 7 , 8 } } ; swapDiagonal ( matrix ) ; for ( int i = 0 ; i < N ; i ++ ) { for ( int j = 0 ; j < N ; j ++ ) System . out . print ( matrix [ i ] [ j ] + " ▁ " ) ; System . out . println ( ) ; } }
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