I have a subclass of JFrame that uses a class extended from JPanel
public class HelloWorld extends JPanel implements KeyListener
I add an object of HelloWorld to the frame - app.add(helloWorld);. Now, when I press any keyboard key non of the KeyListener methods gets called and it seems that helloWorld doesn't have window focus. I have tried also to invoke helloWorld.requestFocusInWindow(); but still doesn't respond.
How can I make it respond to key press?
