java JFrame 面板中插入的图片无法显示

我想在多个JFrame面板中插入图片，一下是代码。但是这样只有第一个面板可以显示图片和按钮，跳转到第二个面板后图片和按钮都无法显示，为什么呢？还有怎样往多个面板中插入图片呢？

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

public class Trans {
    public static void main(String[] args) {
        new Window("window");
    }
}

class Window extends JFrame{
    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    JButton enterButton,closeButton;
    JPanel blackPanel,yellowPanel;
    JLabel label,labell;
    public Window(String s) {
        super(s);
        super.getContentPane().setLayout(null);
        
        //黑色面板
        blackPanel = (JPanel)super.getContentPane();
        blackPanel.setOpaque(false);
        blackPanel.setBackground(Color.black);
        ImageIcon icon1 = new ImageIcon("res/1.jpg");
        label = new JLabel(icon1);
        label.setBounds(0,0,1280,720);
        icon1.setImage(icon1.getImage().getScaledInstance(1280,720,Image.SCALE_DEFAULT));
        blackPanel.add(label,Integer.valueOf(Integer.MIN_VALUE));
        
        //登录按钮
        enterButton = new JButton("登录");
        enterButton.setBounds(300,400,300,100);
        blackPanel.add(enterButton);

        enterButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                blackPanel.setVisible(false);
                yellow();
            }
        });
                
        //设置窗口风格
        super.setBounds(123,30,1290,725);
        super.setVisible(true);
        super.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
                
    }
    
    //黄色面板
    public void yellow() {
        yellowPanel = (JPanel) super.getContentPane();
        yellowPanel.setOpaque(false);
        yellowPanel.setLayout(null);
        yellowPanel.setBounds(0,0,1280,720);
        
        //退出按钮
        closeButton = new JButton("退出");
        closeButton.setBounds(300,400,300,100);
        yellowPanel.add(closeButton);
        
        //插入图片
         ImageIcon icon2 = new ImageIcon("res/凯尔希.jpg");
         labell = new JLabel(icon2);
         labell.setBounds(0,0,1280,720);
         icon2.setImage(icon2.getImage().getScaledInstance(1280,720,Image.SCALE_DEFAULT));
         yellowPanel.add(labell,Integer.valueOf(Integer.MIN_VALUE));
        
    }
}

gpt说一个JFrame只能有一个内容面板，你需要使用不同的组件容器来实现在不同的面板中插入图片