单击JButton时显示JButton

Question

我有一个带有一些JButtons的应用程序，如果你点击它们，你会看到一个图像。现在，如果你打开框架，你还没有点击，你会在屏幕中间看到一个图像。现在我想如果你点击图像的JButton，图像就会显示出来，屏幕中间的另一个图像就消失了，但我不知道该怎么做。

我的框架：

package View;

import java.awt.Color;
import java.awt.Container;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Image;
import java.awt.event.ActionListener;

import javax.swing.BorderFactory;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;


import Controller.HomeController;
import Controller.SelectieController;

public class Selectie extends JFrame{

    private static String Gregory = "Gregory";
    private static String Vermeer = "Vermeer";
    private static String Alderweireld = "Alderweireld";
    private static String Vertonghen = "Vertonghen";
    private static String Anita = "Anita";
    private static String Enoh = "Enoh";
    private static String Sulejmani = "Sulejmani";
    private static String Cristian = "Cristian";
    private static String Kolbeinn = "Kolbeinn";
    private static String Siem = "Siem";
    private static String Lorenzo = "Lorenzo";
    private static String Andre = "Andre";
    private static String Nicolai = "Nicolai";
    private static String Theo = "Theo";
    private static String Daley = "Daley";
    private static String Nicolas = "Nicolas";
    private static String Dmitri = "Dmitri";
    private static String Kruis = "Kruis";

    private JLabel label, label1, label2;
    private JButton keeper, verdediger, verdediger1, verdediger2, verdediger3, verdediger4;
    private JButton middenvelder, middenvelder1, aanvaller, aanvaller1, middenvelder2;
    private JButton aanvaller2, verdediger5, middenvelder3, verdediger6, middenvelder4;
    private JButton aanvaller3, kruis;
    private JPanel panel;
    private Container window = getContentPane();

    public Selectie()
    {
        initGUI();

    }

    public void initGUI()
    {
        setLayout(null);
        setTitle();
        setSize(800,600);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        label = new JLabel();       
        label.setBounds(0, 0, 266, 800);
        label.setBackground(Color.RED);
        label.setOpaque(true);
        window.add(label);

        label1 = new JLabel();
        label1.setBounds(266, 0, 266, 800);
        label1.setBackground(Color.BLACK);
        label1.setOpaque(true);
        window.add(label1);

        label2 = new JLabel();
        label2.setBounds(532, 0, 266, 800);
        label2.setBackground(Color.RED);
        label2.setOpaque(true);
        window.add(label2);

        JLabel foto = new JLabel();
        label1.add(foto);

        kruis = new JButton(new ImageIcon("../Ajax/src/img/logotje.gif"));
        kruis.setBorderPainted(false);
        kruis.setBounds(40, 150, 188, 188);
        kruis.setActionCommand(Kruis);
        label1.add(kruis);

        keeper = new JButton("1. "+""+" Kenneth Vermeer");
        Cursor cur = keeper.getCursor();
        keeper.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
        keeper.setBounds(20, 50, 186, 12);
        keeper.setFocusable(false);
        keeper.setBorderPainted(false);
        keeper.setContentAreaFilled(false);
        keeper.setFont(new Font("Arial",Font.PLAIN,17));
        keeper.setForeground(Color.WHITE);
        keeper.setActionCommand(Vermeer);
        label.add(keeper);

        verdediger = new JButton("2. "+""+" Gregory van der Wiel");
        Cursor cur1 = verdediger.getCursor();
        verdediger.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
        verdediger.setBounds(20, 70, 215, 17);
        verdediger.setFocusable(false);
        verdediger.setBorderPainted(false);
        verdediger.setContentAreaFilled(false);
        verdediger.setFont(new Font("Arial",Font.PLAIN,17));
        verdediger.setForeground(Color.WHITE);
        verdediger.setActionCommand(Gregory);
        label.add(verdediger);

        verdediger1 = new JButton("3. "+""+" Toby Alderweireld");
        Cursor cur2 = verdediger1.getCursor();
        verdediger1.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
        verdediger1.setBounds(20, 95, 188, 17);
        verdediger1.setFocusable(false);
        verdediger1.setBorderPainted(false);
        verdediger1.setContentAreaFilled(false);
        verdediger1.setFont(new Font("Arial",Font.PLAIN,17));
        verdediger1.setForeground(Color.WHITE);
        verdediger1.setActionCommand(Alderweireld);
        label.add(verdediger1);

        verdediger2 = new JButton("4. "+""+" Jan Vertonghen");
        Cursor cur3 = verdediger2.getCursor();
        verdediger2.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
        verdediger2.setBounds(20, 120, 174, 17);
        verdediger2.setFocusable(false);
        verdediger2.setBorderPainted(false);
        verdediger2.setContentAreaFilled(false);
        verdediger2.setFont(new Font("Arial",Font.PLAIN,17));
        verdediger2.setForeground(Color.WHITE);
        verdediger2.setActionCommand(Vertonghen);
        label.add(verdediger2);

        verdediger3 = new JButton("5. "+""+" Vurnon Anita");
        Cursor cur4 = verdediger3.getCursor();
        verdediger3.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
        verdediger3.setBounds(20, 145, 153, 12);
        verdediger3.setFocusable(false);
        verdediger3.setBorderPainted(false);
        verdediger3.setContentAreaFilled(false);
        verdediger3.setFont(new Font("Arial",Font.PLAIN,17));
        verdediger3.setForeground(Color.WHITE);
        verdediger3.setActionCommand(Anita);
        label.add(verdediger3);

        middenvelder = new JButton("6. "+""+" Eyong Enoh");
        Cursor cur5 = middenvelder.getCursor();
        middenvelder.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
        middenvelder.setBounds(20, 170, 148, 17);
        middenvelder.setFocusable(false);
        middenvelder.setBorderPainted(false);
        middenvelder.setContentAreaFilled(false);
        middenvelder.setFont(new Font("Arial",Font.PLAIN,17));
        middenvelder.setForeground(Color.WHITE);
        middenvelder.setActionCommand(Enoh);
        label.add(middenvelder);

        aanvaller = new JButton("7. "+""+" Miralem Sulejmani");
        Cursor cur6 = aanvaller.getCursor();
        aanvaller.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
        aanvaller.setBounds(20, 195, 190, 17);
        aanvaller.setFocusable(false);
        aanvaller.setBorderPainted(false);
        aanvaller.setContentAreaFilled(false);
        aanvaller.setFont(new Font("Arial",Font.PLAIN,17));
        aanvaller.setForeground(Color.WHITE);
        aanvaller.setActionCommand(Sulejmani);
        label.add(aanvaller);

        middenvelder1 = new JButton("8. "+""+" Cristian Eriksen");
        Cursor cur7 = middenvelder1.getCursor();
        middenvelder1.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
        middenvelder1.setBounds(20, 220, 174, 12);
        middenvelder1.setFocusable(false);
        middenvelder1.setBorderPainted(false);
        middenvelder1.setContentAreaFilled(false);
        middenvelder1.setFont(new Font("Arial",Font.PLAIN,17));
        middenvelder1.setForeground(Color.WHITE);
        middenvelder1.setActionCommand(Cristian);
        label.add(middenvelder1);

        aanvaller1 = new JButton("9. "+""+" Kolbeinn Sightórsson");
        Cursor cur8 = aanvaller1.getCursor();
        aanvaller1.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
        aanvaller1.setBounds(20, 245, 212, 17);
        aanvaller1.setFocusable(false);
        aanvaller1.setBorderPainted(false);
        aanvaller1.setContentAreaFilled(false);
        aanvaller1.setFont(new Font("Arial",Font.PLAIN,17));
        aanvaller1.setForeground(Color.WHITE);
        aanvaller1.setActionCommand(Kolbeinn);
        label.add(aanvaller1);

        middenvelder2 = new JButton("10. "+""+" Siem de Jong");
        Cursor cur9 = middenvelder2.getCursor();
        middenvelder2.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
        middenvelder2.setBounds(20, 270, 168, 17);
        middenvelder2.setFocusable(false);
        middenvelder2.setBorderPainted(false);
        middenvelder2.setContentAreaFilled(false);
        middenvelder2.setFont(new Font("Arial",Font.PLAIN,17));
        middenvelder2.setForeground(Color.WHITE);
        middenvelder2.setActionCommand(Siem);
        label.add(middenvelder2);

        aanvaller2 = new JButton("11. "+""+" Lorenzo Ebecilio");
        Cursor cur10 = aanvaller2.getCursor();
        aanvaller2.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
        aanvaller2.setBounds(20, 295, 189, 12);
        aanvaller2.setFocusable(false);
        aanvaller2.setBorderPainted(false);
        aanvaller2.setContentAreaFilled(false);
        aanvaller2.setFont(new Font("Arial",Font.PLAIN,17));
        aanvaller2.setForeground(Color.WHITE);
        aanvaller2.setActionCommand(Lorenzo);
        label.add(aanvaller2);

        verdediger4 = new JButton("13. "+""+" André Ooijer");
        Cursor cur11 = verdediger4.getCursor();
        verdediger4.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
        verdediger4.setBounds(20, 320, 159, 17);
        verdediger4.setFocusable(false);
        verdediger4.setBorderPainted(false);
        verdediger4.setContentAreaFilled(false);
        verdediger4.setFont(new Font("Arial",Font.PLAIN,17));
        verdediger4.setForeground(Color.WHITE);
        verdediger4.setActionCommand(Andre);
        label.add(verdediger4);

        verdediger5 = new JButton("15. "+""+" Nicolai Boilesen");
        Cursor cur12 = verdediger5.getCursor();
        verdediger5.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
        verdediger5.setBounds(20, 345, 183, 12);
        verdediger5.setFocusable(false);
        verdediger5.setBorderPainted(false);
        verdediger5.setContentAreaFilled(false);
        verdediger5.setFont(new Font("Arial",Font.PLAIN,17));
        verdediger5.setForeground(Color.WHITE);
        verdediger5.setActionCommand(Nicolai);
        label.add(verdediger5);

        middenvelder3 = new JButton("16. "+""+" Theo Janssen");
        Cursor cur13 = middenvelder3.getCursor();
        middenvelder3.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
        middenvelder3.setBounds(20, 370, 169, 12);
        middenvelder3.setFocusable(false);
        middenvelder3.setBorderPainted(false);
        middenvelder3.setContentAreaFilled(false);
        middenvelder3.setFont(new Font("Arial",Font.PLAIN,17));
        middenvelder3.setForeground(Color.WHITE);
        middenvelder3.setActionCommand(Theo);
        label.add(middenvelder3);

        verdediger6 = new JButton("17. "+""+" Daley Blind");
        Cursor cur14 = verdediger6.getCursor();
        verdediger6.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
        verdediger6.setBounds(20, 395, 150, 17);
        verdediger6.setFocusable(false);
        verdediger6.setBorderPainted(false);
        verdediger6.setContentAreaFilled(false);
        verdediger6.setFont(new Font("Arial",Font.PLAIN,17));
        verdediger6.setForeground(Color.WHITE);
        verdediger6.setActionCommand(Daley);
        label.add(verdediger6);

        middenvelder4 = new JButton("18. "+""+" Nicolás Lodeiro");
        Cursor cur15 = middenvelder4.getCursor();
        middenvelder4.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
        middenvelder4.setBounds(20, 420, 180, 12);
        middenvelder4.setFocusable(false);
        middenvelder4.setBorderPainted(false);
        middenvelder4.setContentAreaFilled(false);
        middenvelder4.setFont(new Font("Arial",Font.PLAIN,17));
        middenvelder4.setForeground(Color.WHITE);
        middenvelder4.setActionCommand(Nicolas);
        label.add(middenvelder4);

        aanvaller3 = new JButton("19. "+""+" Dmitri Bulykin");
        Cursor cur16 = aanvaller3.getCursor();
        aanvaller3.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
        aanvaller3.setBounds(20, 445, 168, 17);
        aanvaller3.setFocusable(false);
        aanvaller3.setBorderPainted(false);
        aanvaller3.setContentAreaFilled(false);
        aanvaller3.setFont(new Font("Arial",Font.PLAIN,17));
        aanvaller3.setForeground(Color.WHITE);
        aanvaller3.setActionCommand(Dmitri);
        label.add(aanvaller3);

        SelectieController s1 = new SelectieController(keeper, foto, verdediger, verdediger1, verdediger2,
                verdediger3, middenvelder, aanvaller, middenvelder1, aanvaller1, middenvelder2, aanvaller2,
                verdediger4, verdediger5, middenvelder3, verdediger6, middenvelder4, aanvaller3, kruis);

        keeper.addActionListener(s1);
        verdediger.addActionListener(s1);
        verdediger1.addActionListener(s1);
        verdediger2.addActionListener(s1);
        verdediger3.addActionListener(s1);
        verdediger4.addActionListener(s1);
        verdediger5.addActionListener(s1);
        verdediger6.addActionListener(s1);
        middenvelder.addActionListener(s1);
        aanvaller.addActionListener(s1);
        middenvelder1.addActionListener(s1);
        aanvaller1.addActionListener(s1);
        middenvelder2.addActionListener(s1);
        aanvaller2.addActionListener(s1);
        middenvelder3.addActionListener(s1);
        middenvelder4.addActionListener(s1);
        aanvaller3.addActionListener(s1);
        }

}

Kruis是屏幕a=中间的图像

ActionPerformed类：

package Controller;

import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;

public class SelectieController implements ActionListener {


    private JButton keeper, verdediger, verdediger1, verdediger2, verdediger3;
    private JButton middenvelder, aanvaller, middenvelder1, aanvaller1, middenvelder2;
    private JButton aanvaller2, verdediger4, verdediger5, middenvelder3, verdediger6;
    private JButton middenvelder4, aanvaller3, kruis;
    private ImageIcon imageIcon, imageIcon1, imageIcon2, imageIcon3, imageIcon4, imageIcon5;
    private ImageIcon imageIcon6, imageIcon7, imageIcon8, imageIcon9, imageIcon10, imageIcon11;
    private ImageIcon imageIcon12, imageIcon13, imageIcon14, imageIcon15, imageIcon16;
    private JLabel imageLabel;
    private Image image, image1, image2, image3, image4, image5, image6, image7, image8, image9;
    private Image image10, image11, image12, image13, image14, image15, image16;
    private static String Vermeer = "Vermeer";
    private static String Gregory = "Gregory";
    private static String Alderweireld = "Alderweireld";
    private static String Vertonghen = "Vertonghen";
    private static String Anita = "Anita";
    private static String Enoh = "Enoh";
    private static String Sulejmani = "Sulejmani";
    private static String Cristian = "Cristian";
    private static String Kolbeinn = "Kolbeinn";
    private static String Siem = "Siem";
    private static String Lorenzo = "Lorenzo";
    private static String Andre = "Andre";
    private static String Nicolai = "Nicolai";
    private static String Theo = "Theo";
    private static String Daley = "Daley";
    private static String Nicolas = "Nicolas";
    private static String Dmitri = "Dmitri";
    private static String Kruis = "Kruis";

    public SelectieController(JButton vermeer, JLabel vermeer1, JButton gregory, JButton toby, JButton jan,
            JButton vurnon, JButton eyong, JButton sulejmani, JButton cristian, JButton kolbeinn, JButton siem,
            JButton lorenzo, JButton andre, JButton nicolai, JButton theo, JButton daley, JButton nicolas,
            JButton dmitri, JButton kruis)

    {
        kruis = kruis;
        keeper = vermeer;
        verdediger1 = toby;
        verdediger = gregory;
        verdediger2 = jan;
        verdediger3 = vurnon;
        middenvelder = eyong;
        aanvaller = sulejmani;
        aanvaller1 = kolbeinn;
        middenvelder1 = cristian;
        imageLabel = vermeer1;
        middenvelder2 = siem;
        aanvaller2 = lorenzo;
        verdediger4 = andre;
        verdediger5 = nicolai;
        middenvelder3 = theo;
        verdediger6 = daley;
        middenvelder4 = nicolas;
        aanvaller3 = dmitri;

        //Kenneth Vermeer
         try
         {
             image = ImageIO.read(getClass().getResource("/img/kenneth.png"));

         }
         catch(Exception e)
         {
             e.printStackTrace();
         }
        imageIcon = new ImageIcon(image);
        }{

        // Gregory van der Wiel
        try
        {
        image1 = ImageIO.read(getClass().getResource("/img/wiel.png"));

        }
        catch(Exception e)
        {
        e.printStackTrace();
        }
        imageIcon1 = new ImageIcon(image1);
        }{

        // Toby Alderweireld
        try
        {
        image2 = ImageIO.read(getClass().getResource("/img/toby.png"));

        }
        catch(Exception e)
        {
        e.printStackTrace();
        }
        imageIcon2 = new ImageIcon(image2);
        }{

        // Jan Vertonghen
                try
                {
                image3 = ImageIO.read(getClass().getResource("/img/jan.png"));

                }
                catch(Exception e)
                {
                e.printStackTrace();
                }
                imageIcon3 = new ImageIcon(image3);
                }{

        // Vurnon anita
        try
        {
        image4 = ImageIO.read(getClass().getResource("/img/vurnon.png"));

        }
        catch(Exception e)
        {
        e.printStackTrace();
        }
        imageIcon4 = new ImageIcon(image4);
        }{
            // Eyong Enoh
            try
            {
            image5 = ImageIO.read(getClass().getResource("/img/eyong.png"));

            }
            catch(Exception e)
            {
            e.printStackTrace();
            }
            imageIcon5 = new ImageIcon(image5);
            }{
        // Miralem Sulejmani
                    try
                    {
                    image6 = ImageIO.read(getClass().getResource("/img/sulejmani.png"));

                    }
                    catch(Exception e)
                    {
                    e.printStackTrace();
                    }
                    imageIcon6 = new ImageIcon(image6);
                    }{
            // Cristian Eriksen
            try
            {
            image7 = ImageIO.read(getClass().getResource("/img/eriksen.png"));

            }
            catch(Exception e)
            {
            e.printStackTrace();
            }
            imageIcon7 = new ImageIcon(image7);
            }{
                    // Kolbeinn sightorsson
                    try
                    {
                    image8 = ImageIO.read(getClass().getResource("/img/kolbeinn.png"));

                    }
                    catch(Exception e)
                    {
                    e.printStackTrace();
                    }
                    imageIcon8 = new ImageIcon(image8);
                    }{

            // Siem de Jong
            try
            {
            image9 = ImageIO.read(getClass().getResource("/img/siem.png"));

            }
            catch(Exception e)
            {
            e.printStackTrace();
            }
            imageIcon9 = new ImageIcon(image9);
            }{
                    // Lorenzo Ebecilio
                    try
                    {
                    image10 = ImageIO.read(getClass().getResource("/img/lorenzo.png"));

                    }
                    catch(Exception e)
                    {
                    e.printStackTrace();
                    }
                    imageIcon10 = new ImageIcon(image10);
                    }{
                        // Andre Ooijer
                        try
                        {
                        image11 = ImageIO.read(getClass().getResource("/img/andre.png"));

                        }
                        catch(Exception e)
                        {
                        e.printStackTrace();
                        }
                        imageIcon11 = new ImageIcon(image11);
                        }{
                    // Nicolai Boilesen
                    try
                    {
                    image12 = ImageIO.read(getClass().getResource("/img/nicolai.png"));

                    }
                    catch(Exception e)
                    {
                    e.printStackTrace();
                    }
                    imageIcon12 = new ImageIcon(image12);
                    }{
                        // Theo Janssen
                        try
                        {
                        image13 = ImageIO.read(getClass().getResource("/img/theo.png"));

                        }
                        catch(Exception e)
                        {
                        e.printStackTrace();
                        }
                        imageIcon13 = new ImageIcon(image13);
                        }{
                    // Daley Blind
                    try
                    {
                    image14 = ImageIO.read(getClass().getResource("/img/daley.png"));

                    }
                    catch(Exception e)
                    {
                    e.printStackTrace();
                    }
                    imageIcon14 = new ImageIcon(image14);
                    }{
                        // Nicolas Lodeiro
                        try
                        {
                        image15 = ImageIO.read(getClass().getResource("/img/nicolas.png"));

                        }
                        catch(Exception e)
                        {
                        e.printStackTrace();
                        }
                        imageIcon15 = new ImageIcon(image15);
                        }{
                    // Dmitri Bulykin
                    try
                    {
                    image16 = ImageIO.read(getClass().getResource("/img/dmitri.png"));

                    }
                    catch(Exception e)
                    {
                    e.printStackTrace();
                    }
                    imageIcon16 = new ImageIcon(image16);
                    }

     public void actionPerformed(ActionEvent event)
     {
         String actionCommand = event.getActionCommand();
         // Kenneth Vermeer
         if (Vermeer.equals(actionCommand)) 
         {
             SwingUtilities.invokeLater(new Runnable()
             {
                 public void run()
                 {                       
                     imageLabel.setIcon(imageIcon );
                     imageLabel.setBounds(75, 50, 120, 150);
                     kruis.setVisible(false);

                 }
             });
     }
         // Gregory van der Wiel
         if (Gregory.equals(actionCommand)) 
         {
             SwingUtilities.invokeLater(new Runnable()
             {
                 public void run()
                 {                       
                     imageLabel.setIcon(imageIcon1 );
                     imageLabel.setBounds(75, 50, 120, 150);
                 }
             });
     }
         // Toby Alderweireld
         if (Alderweireld.equals(actionCommand)) 
         {
             SwingUtilities.invokeLater(new Runnable()
             {
                 public void run()
                 {                       
                     imageLabel.setIcon(imageIcon2 );
                     imageLabel.setBounds(75, 50, 120, 150);
                 }
             });
     }
         // Jan Vertonghen
         if (Vertonghen.equals(actionCommand)) 
         {
             SwingUtilities.invokeLater(new Runnable()
             {
                 public void run()
                 {                       
                     imageLabel.setIcon(imageIcon3 );
                     imageLabel.setBounds(75, 50, 120, 150);
                 }
             });
     }
         //Vurnon Anita
         if (Anita.equals(actionCommand)) 
         {
             SwingUtilities.invokeLater(new Runnable()
             {
                 public void run()
                 {                       
                     imageLabel.setIcon(imageIcon4 );
                     imageLabel.setBounds(75, 50, 120, 150);
                 }
             });
     }
         // Eyong Enoh
         if (Enoh.equals(actionCommand)) 
         {
             SwingUtilities.invokeLater(new Runnable()
             {
                 public void run()
                 {                       
                     imageLabel.setIcon(imageIcon5 );
                     imageLabel.setBounds(75, 50, 120, 150);
                 }
             });
     }
         // Miralem Sulejmani
         if (Sulejmani.equals(actionCommand)) 
         {
             SwingUtilities.invokeLater(new Runnable()
             {
                 public void run()
                 {                       
                     imageLabel.setIcon(imageIcon6 );
                     imageLabel.setBounds(75, 50, 120, 150);
                 }
             });
         }
 }}

Answer 1

首先，每当你有像button1，button2等名称的元素时，你需要重构代码并使用数组来代替。这样，您就可以使用元素的索引来引用所需的元素，而不是使用许多if-else语句。这适用于Strings、Buttons、Images和ImageIcons。

现在，当一个按钮被按下时，找到它的索引(例如在循环中)，并使用setVisible(false)使所有其他按钮/图像消失，使用setVisible(true)只显示相关的图像。