public static void main ( String args [ ] ) {
  int in1 [ ] = {
    4 , 2 , 5 , 1 , 3 , 6 };
    int pre [ ] = {
      1 , 2 , 4 , 5 , 3 , 6 };
      int n = in1 . length ;
      System . out . println ( "Postorder traversal " ) ;
      printPostOrder ( in1 , pre , n ) ;
    }
    
public static void main ( String args [ ] ) { int in1 [ ] = { 4 , 2 , 5 , 1 , 3 , 6 } ; int pre [ ] = { 1 , 2 , 4 , 5 , 3 , 6 } ; int n = in1 . length ; System . out . println ( " Postorder ▁ traversal ▁ " ) ; printPostOrder ( in1 , pre , n ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (type_identifier) name: (identifier) dimensions: (dimensions))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) dimensions: (dimensions) value: (array_initializer (decimal_integer_literal) (decimal_integer_literal) (decimal_integer_literal) (decimal_integer_literal) (decimal_integer_literal) (decimal_integer_literal)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) dimensions: (dimensions) value: (array_initializer (decimal_integer_literal) (decimal_integer_literal) (decimal_integer_literal) (decimal_integer_literal) (decimal_integer_literal) (decimal_integer_literal)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (field_access object: (identifier) field: (identifier)))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal)))) (expression_statement (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier) (identifier))))))