@interface TextLabelButtonAppDelegate : NSObject  {

}

@property (nonatomic, retain) IBOutlet UIWindow *window;
@property (nonatomic, retain) IBOutlet UILabel *labelResult;
@property (nonatomic, retain) IBOutlet UITextField *textAnswer;
@property (nonatomic, retain) IBOutlet UIButton *buttonSubmit;

- (IBAction)checkAnswer;

@end


@implementation TextLabelButtonAppDelegate

@synthesize window=_window,labelResult,textAnswer,buttonSubmit;

- (IBAction)checkAnswer {
    [textAnswer resignFirstResponder];
    if ([textAnswer.text isEqualToString:@"42"]) {
        labelResult.text = @"CORRECT!";
    } else {
        labelResult.text = @"WRONG!";
    }
}