My KeyListener doesn´t work, why?

Question

Hi!
I am trying to ge my KeyListener working.
My code is as follows:
class C extends JPanel
          public C()
               addMouseListener(new MListener());
                        addKeyListener(new KListener());Furher down in the code I have this:
class KListener extends KeyAdapter
            public void keyPressed(KeyEvent e)
                   System.out.println(KeyEvent.getKeyText(e.getKeyCode()) + " was pressed");
            public void keyReleased(KeyEvent e)
                 System.out.println(KeyEvent.getKeyText(e.getKeyCode()) + " was released");
       }I do not get any errors when compiling the code but the KeyListener doesn´t work. The mouse listeners work perfekt.
What´s wrong with my key listener?

Answer 1

Add your keyListener to the JFrame and it will probably work, the JFrame has the focus when you use your JPanel.
package Junk;
import java.awt.Dimension;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import javax.swing.JFrame;
class Junk extends JFrame {
  Junk(){
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    addKeyListener(new KListener());
    setPreferredSize(new Dimension(256, 256));
    setVisible(true);
  public static void main(String[] args){
    new Junk();
  class KListener extends KeyAdapter {
    public void keyPressed(KeyEvent e) {
            System.out.println(KeyEvent.getKeyText(e.getKeyCode()) + " was pressed");
          public void keyReleased(KeyEvent e) {
         System.out.println(KeyEvent.getKeyText(e.getKeyCode()) + " was released");
}