CardLayout卡片布局（Firsh、Next、Previous、Last功能演示）

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class CardDeck extends JFrame implements ActionListener {
 private static final long serialVersionUID = -2827714684185695534L;
 private CardLayout cardManager;
 private JPanel deck;
 private JButton controls[];
 private String names[] = { "First  card", "Next  card", "Previous  card",
   "Last  card" };

 public CardDeck() {
  super("CardLayout  ");

  Container c = getContentPane();

  // create the JPanel with CardLayout
  deck = new JPanel();
  cardManager = new CardLayout();
  deck.setLayout(cardManager);

  // set up card1 and add it to JPanel deck
  JLabel label1 = new JLabel("card  one", SwingConstants.CENTER);
  JPanel card1 = new JPanel();
  card1.add(label1);
  deck.add(card1, label1.getText()); // add card to deck

  // set up card2 and add it to JPanel deck
  JLabel label2 = new JLabel("card  two", SwingConstants.CENTER);
  JPanel card2 = new JPanel();
  card2.setBackground(Color.yellow);
  card2.add(label2);
  deck.add(card2, label2.getText()); // add card to deck

  // set up card3 and add it to JPanel deck
  JLabel label3 = new JLabel("card  three");
  JPanel card3 = new JPanel();
  card3.setLayout(new BorderLayout());
  card3.add(new JButton("North"), BorderLayout.NORTH);
  card3.add(new JButton("West"), BorderLayout.WEST);
  card3.add(new JButton("East"), BorderLayout.EAST);
  card3.add(new JButton("South"), BorderLayout.SOUTH);
  card3.add(label3, BorderLayout.CENTER);
  deck.add(card3, label3.getText()); // add card to deck

  // create and layout buttons that will control deck
  JPanel buttons = new JPanel();
  buttons.setLayout(new GridLayout(2, 2));
  controls = new JButton[names.length];

  for (int i = 0; i < controls.length; i++) {
   controls[i] = new JButton(names[i]);
   controls[i].addActionListener(this);
   buttons.add(controls[i]);
  }

  // add JPanel deck and JPanel buttons to the applet
  c.add(buttons, BorderLayout.WEST);
  c.add(deck, BorderLayout.EAST);

  setSize(450, 200);
  setVisible(true);
 }

 public void actionPerformed(ActionEvent e) {
  if (e.getSource() == controls[0])
   cardManager.first(deck); // show first card
  else if (e.getSource() == controls[1])
   cardManager.next(deck); // show next card
  else if (e.getSource() == controls[2])
   cardManager.previous(deck); // show previous card
  else if (e.getSource() == controls[3])
   cardManager.last(deck); // show last card
 }

 public static void main(String args[]) {
  CardDeck cardDeckDemo = new CardDeck();

  cardDeckDemo.addWindowListener(new WindowAdapter() {
   public void windowClosing(WindowEvent e) {
    System.exit(0);
   }
  });
 }
}