Task

Create a window that has:

   a label that says   "There have been no clicks yet" 
   a button that says   "click me"


Upon clicking the button with the mouse, the label should change and show the number of times the button has been clicked.




#include <Foundation/Foundation.h>
#include <AppKit/AppKit.h>
 
@interface ClickMe : NSWindow
{
  NSButton *_button;
  NSTextField *_text;
  int _counter;
}
- (void)applicationDidFinishLaunching: (NSNotification *)notification;
- (BOOL)applicationShouldTerminateAfterLastWindowClosed: (NSNotification *)notification;
- (void)advanceCounter: (id)sender;
@end