static boolean distinct ( int n ) {
  String str = Integer . toString ( n ) ;
  HashSet < Character > objSet = new HashSet < Character > ( ) ;
  int l = str . length ( ) ;
  for ( int i = 0 ;
  i < l ;
  i ++ ) {
    objSet . add ( str . charAt ( i ) ) ;
  }
  if ( objSet . size ( ) == l ) {
    return true ;
  }
  else {
    return false ;
  }
}

static boolean distinct ( int n ) { String str = Integer . toString ( n ) ; HashSet < Character > objSet = new HashSet < Character > ( ) ; int l = str . length ( ) ; for ( int i = 0 ; i < l ; i ++ ) { objSet . add ( str . charAt ( i ) ) ; } if ( objSet . size ( ) == l ) { return true ; } else { return false ; } }
(method_declaration (modifiers) type: (boolean_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))) (local_variable_declaration type: (generic_type (type_identifier) (type_arguments (type_identifier))) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (generic_type (type_identifier) (type_arguments (type_identifier))) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (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 (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))))))) (if_statement condition: (parenthesized_expression (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) right: (identifier))) consequence: (block (return_statement (true))) alternative: (block (return_statement (false))))))