public static void main ( String args [ ] ) {
  Node root = new Node ( 25 ) ;
  root . left = new Node ( 20 ) ;
  root . right = new Node ( 30 ) ;
  root . left . left = new Node ( 18 ) ;
  root . left . right = new Node ( 22 ) ;
  root . right . left = new Node ( 24 ) ;
  root . right . right = new Node ( 32 ) ;
  int N = 6 ;
  NthPostordernode ( root , N ) ;
}

public static void main ( String args [ ] ) { Node root = new Node ( 25 ) ; root . left = new Node ( 20 ) ; root . right = new Node ( 30 ) ; root . left . left = new Node ( 18 ) ; root . left . right = new Node ( 22 ) ; root . right . left = new Node ( 24 ) ; root . right . right = new Node ( 32 ) ; int N = 6 ; NthPostordernode ( root , 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: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list (decimal_integer_literal))))) (expression_statement (assignment_expression left: (field_access object: (identifier) field: (identifier)) right: (object_creation_expression type: (type_identifier) arguments: (argument_list (decimal_integer_literal))))) (expression_statement (assignment_expression left: (field_access object: (identifier) field: (identifier)) right: (object_creation_expression type: (type_identifier) arguments: (argument_list (decimal_integer_literal))))) (expression_statement (assignment_expression left: (field_access object: (field_access object: (identifier) field: (identifier)) field: (identifier)) right: (object_creation_expression type: (type_identifier) arguments: (argument_list (decimal_integer_literal))))) (expression_statement (assignment_expression left: (field_access object: (field_access object: (identifier) field: (identifier)) field: (identifier)) right: (object_creation_expression type: (type_identifier) arguments: (argument_list (decimal_integer_literal))))) (expression_statement (assignment_expression left: (field_access object: (field_access object: (identifier) field: (identifier)) field: (identifier)) right: (object_creation_expression type: (type_identifier) arguments: (argument_list (decimal_integer_literal))))) (expression_statement (assignment_expression left: (field_access object: (field_access object: (identifier) field: (identifier)) field: (identifier)) right: (object_creation_expression type: (type_identifier) arguments: (argument_list (decimal_integer_literal))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (expression_statement (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier))))))