public static void main ( String args [ ] ) {
  int matrix [ ] [ ] = {
    {
      1 , 2 , 3 }, {
        4 , 5 , 6 }, {
          7 , 8 , 9 }
        };
        int row = 3 , col = 3 ;
        System . out . println ( "Lower triangular matrix: " ) ;
        lower ( matrix , row , col ) ;
        System . out . println ( "Upper triangular matrix: " ) ;
        upper ( matrix , row , col ) ;
      }
      
public static void main ( String args [ ] ) { int matrix [ ] [ ] = { { 1 , 2 , 3 } , { 4 , 5 , 6 } , { 7 , 8 , 9 } } ; int row = 3 , col = 3 ; System . out . println ( " Lower ▁ triangular ▁ matrix : ▁ " ) ; lower ( matrix , row , col ) ; System . out . println ( " Upper ▁ triangular ▁ matrix : ▁ " ) ; upper ( matrix , row , col ) ; }
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