java - How to swap 2 jPanel places?

Question

So I created a new jFrame and in it I have 2 jPanels - jPanel1 and jPanel2.

I need these 2 jPanels to swap places, the first one goes to the place of the second, and the second to the place of the first (with everything that will be inside jPanels).

What is the best way to do this?

question from:https://stackoverflow.com/questions/65910291/how-to-swap-2-jpanel-places

Answer 1

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

public class Class {
    static JFrame frame;
    static JPanel panel1 = new JPanel();
    static JPanel panel2 = new JPanel();
    public static void main(String[] args) {
        panel1.add(new JLabel("Panel 1"));
        panel2.add(new JLabel("Panel 2"));

        frame = new JFrame();
        frame.getContentPane().setLayout(new GridLayout(1,2));
        frame.setVisible(true);
        frame.setSize(500,500);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        
        frame.getContentPane().add(panel1);
        frame.getContentPane().add(panel2);

        new Timer(2000,e -> {
            frame.getContentPane().removeAll();
            frame.getContentPane().add(panel2);
            frame.getContentPane().add(panel1);
            frame.getContentPane().revalidate();
        }).start();
    }
}