Swing KeyLintener keyboard event listener

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package Assis;

import java.awt.*;
import java.awt.event.*;

import javax.swing.*;

public class TestEvent extends JFrame {
        private static final long serialVersionUID = 1L;

        public TestEvent() {
                setSize(400, 300);
                // addKeyListener(new Listener());
                P p1 = new P();
                this.getContentPane().add(BorderLayout.NORTH, p1);

                P p2 = new P();
                this.getContentPane().add(BorderLayout.SOUTH, p2);


        public static void main(String[] args) {
                new TestEvent();

class P extends JPanel {
        private static final long serialVersionUID = 1L;

        public P() {
                addKeyListener(new Listener());

                this.addMouseListener(new MouseAdapter() {
                        public void mouseClicked(MouseEvent e) {

class Listener implements KeyListener {
        public void keyPressed(KeyEvent e) {
                System.out.println("---" + e);

        public void keyReleased(KeyEvent e) {

        public void keyTyped(KeyEvent e) {
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