在Swing应用程序中的两个页面之间切换

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

public class CardLayoutExample {
    public static void main(String[] args) {
        JFrame frame = new JFrame("CardLayout Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(300, 200);

        // 创建容器并设置布局管理器为卡片布局
        JPanel cardPanel = new JPanel(new CardLayout());

        // 创建两个页面组件
        JPanel page1 = new JPanel();
        page1.add(new JLabel("Page 1"));
        JPanel page2 = new JPanel();
        page2.add(new JLabel("Page 2"));

        // 将页面组件添加到容器中
        cardPanel.add(page1, "Page 1");
        cardPanel.add(page2, "Page 2");

        // 创建按钮来切换页面
        JButton button1 = new JButton("Show Page 1");
        button1.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                // 切换到页面1
                CardLayout cardLayout = (CardLayout) cardPanel.getLayout();
                cardLayout.show(cardPanel, "Page 1");
            }
        });

        JButton button2 = new JButton("Show Page 2");
        button2.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                // 切换到页面2
                CardLayout cardLayout = (CardLayout) cardPanel.getLayout();
                cardLayout.show(cardPanel, "Page 2");
            }
        });

        // 创建一个包含按钮和卡片容器的主容器
        JPanel mainPanel = new JPanel();
        mainPanel.add(button1);
        mainPanel.add(button2);
        mainPanel.add(cardPanel);

        frame.add(mainPanel);
        frame.setVisible(true);
    }
}