JavaGUI界面实现页面跳转方法

在这里插入代码片
```package 跳转;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class 页面1 extends JFrame {
    private JButton j1 = new JButton("跳转");
    public 页面1() {
        setTitle("页面1");
        setSize(350, 450);
        JPanel panel = (JPanel) getContentPane();
        panel.add(j1);
        setVisible(true);
        j1.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                  new 页面2();//打开页面2，
                  setVisible(false);//关闭页面1
            }
        });
    }
    public static void main(String[] args) {
        new 页面1();
    }
}
页面2`
```javapackage 跳转;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class 页面2 extends JFrame {
    public 页面2() {
        setTitle("页面2");
        setSize(350, 450);
        JPanel panel = (JPanel) getContentPane();
       setVisible(true);
    }
}