NSDictionary *jsonDictionary = @{ @"id": @123, @"username": @"taro yamada" }; User *user = [[User alloc] init]; user.id = jsonDictionary[@"id"]; user.name = jsonDictionary[@"username"]; @implementation Note @property(nonatomic, strong) NSString *title; @property(nonatomic, strong) NSString *text; @property(nonatomic, strong) NSDate *date; @end NSArray *notes = @[ // noteの辞書 @{ @"id": @123, @"title