Ejercicio sobre eventos en Java (13.04.00)

Usando el soguiente codigo, compruebe los eventos de teclado, raton y ventana.

Ventana.java

import javax.swing.*;

import java.awt.event.*;

import java.awt.*;

public class Ventana extends JFrame {

     

      JLabel etiqueta;

      JButton botonHola, botonAdios;

      JPanel panel;

     

      public Ventana(){

            etiqueta = new JLabel("Bienvenidos");

            botonHola = new JButton("Hola");

            botonAdios = new JButton("Adios");

            panel = new JPanel();

            panel.add(etiqueta);

            panel.add(botonHola);

            panel.add(botonAdios);

            getContentPane().add(panel);

           

            OyenteAccion oyenteBoton = new OyenteAccion();

            botonHola.addActionListener(oyenteBoton);

            botonAdios.addActionListener(oyenteBoton);

           

            OyenteMouse oyenteMouse = new OyenteMouse();

            botonHola.addMouseListener(oyenteMouse);

           

            OyenteKey oyenteKey = new OyenteKey();

            botonAdios.addKeyListener(oyenteKey);

           

            OyenteWindow oyenteWindow = new OyenteWindow();

            this.addWindowListener(oyenteWindow);

           

      }

      public static void main (String[] args) {

            Ventana ventana = new Ventana();

            ventana.setTitle("UNI - FIIS - ST232 (Ventana Swing)");

            ventana.setSize(300,70);

            ventana.setVisible(true);

      }

     

      class OyenteAccion implements ActionListener {

            public void actionPerformed (ActionEvent evento) {

                  JButton boton = (JButton) evento.getSource();

                  etiqueta.setText(boton.getText() + " amigo! ");

            }

      }

     

    class OyenteMouse implements MouseListener {

          public void mousePressed(MouseEvent e) {

             etiqueta.setText("Raton Presionado");

          }

          public void mouseReleased(MouseEvent e) {

             etiqueta.setText("Raton Liberado");

          }

          public void mouseEntered(MouseEvent e) {

             etiqueta.setText("Raton ingreso");

          }

          public void mouseExited(MouseEvent e) {

             etiqueta.setText("Raton salio");

          }

          public void mouseClicked(MouseEvent e) {

             etiqueta.setText("Raton Pulsado");

          }

    }

     

    class OyenteKey implements KeyListener {

          public void keyTyped(KeyEvent e) {

                  etiqueta.setText("Tecla Tipeada =" + e.getKeyChar());

          }

     

          public void keyPressed(KeyEvent e) {

                  etiqueta.setText("Tecla Presionada ="+e.getKeyChar());

          }

     

          public void keyReleased(KeyEvent e) {

                  etiqueta.setText("Tecla Liberada ="+e.getKeyChar());

          }

      }

    class OyenteWindow implements WindowListener {  

          public void windowClosing(WindowEvent e) {

              etiqueta.setText("Ventana por cerrarse");

                  Window ventana = (Window) e.getSource();

//            ventana.setVisible(false);      

          }

          public void windowClosed(WindowEvent e) {

              etiqueta.setText("Ventana cerrada");

          }

          public void windowOpened(WindowEvent e) {

//            etiqueta.setText("Ventana abierta");

          }

          public void windowIconified(WindowEvent e) {

              etiqueta.setText("Ventana iconificada");

          }

          public void windowDeiconified(WindowEvent e) {

              etiqueta.setText("Ventana desiconificada");

          }

          public void windowActivated(WindowEvent e) {

//            etiqueta.setText("Ventana activada");

          }

          public void windowDeactivated(WindowEvent e) {

              etiqueta.setText("Ventana desactivada");

          }

      }

}