public static void printTriangle ( int n ) {
  int tri [ ] [ ] = new int [ n ] [ n ] ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) tri [ n - 1 ] [ i ] = arr [ i ] ;
  for ( int i = n - 2 ;
  i >= 0 ;
  i -- ) for ( int j = 0 ;
  j <= i ;
  j ++ ) tri [ i ] [ j ] = tri [ i + 1 ] [ j ] + tri [ i + 1 ] [ j + 1 ] ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    for ( int j = 0 ;
    j <= i ;
    j ++ ) System . out . print ( tri [ i ] [ j ] + " " ) ;
    System . out . println ( ) ;
  }
}

public static void printTriangle ( int n ) { int tri [ ] [ ] = new int [ n ] [ n ] ; for ( int i = 0 ; i < n ; i ++ ) tri [ n - 1 ] [ i ] = arr [ i ] ; for ( int i = n - 2 ; i >= 0 ; i -- ) for ( int j = 0 ; j <= i ; j ++ ) tri [ i ] [ j ] = tri [ i + 1 ] [ j ] + tri [ i + 1 ] [ j + 1 ] ; for ( int i = 0 ; i < n ; i ++ ) { for ( int j = 0 ; j <= i ; j ++ ) System . out . print ( tri [ i ] [ j ] + " ▁ " ) ; System . out . println ( ) ; } }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) dimensions: (dimensions) value: (array_creation_expression type: (integral_type) dimensions: (dimensions_expr (identifier)) dimensions: (dimensions_expr (identifier))))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (expression_statement (assignment_expression left: (array_access array: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) index: (identifier)) right: (array_access array: (identifier) index: (identifier))))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (identifier) right: (decimal_integer_literal)))) condition: (binary_expression left: (identifier) right: (decimal_integer_literal)) update: (update_expression (identifier)) body: (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (expression_statement (assignment_expression left: (array_access array: (array_access array: (identifier) index: (identifier)) index: (identifier)) right: (binary_expression left: (array_access array: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) index: (identifier)) right: (array_access array: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) index: (binary_expression left: (identifier) right: (decimal_integer_literal)))))))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (array_access array: (array_access array: (identifier) index: (identifier)) index: (identifier)) right: (string_literal)))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list)))))))