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我似乎无法正确处理。该代码没有任何语法错误，但没有显示我想要显示的内容。这是我写的代码。预先感谢您的帮助。我想在游戏面板（子面板）中显示图像 jbuttons.. 那里应该有 9 个 jbuttons 但它没有显示。框架只是灰色的。我不知道如何让子面板显示。

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

public class midterm extends JFrame
{
    JPanel mainpanel;
    JButton image1=new JButton();
    JButton image2=new JButton();
    JButton image3=new JButton();
    JButton image4=new JButton();
    JButton image5=new JButton();
    JButton image6=new JButton();
    JButton image7=new JButton();
    JButton image8=new JButton();
    JButton image9=new JButton();   


    JLabel text=new JLabel("Please select a photo above.");


    public midterm()
    {
        super("Girls' Generation - I GOT A BOY 4th Korean Album");
        setSize(700,700);
        setLocation(200,30);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setVisible(true);
        setResizable(false);

        panel();
    }

    public static void main(String[] args)
    {
        midterm frame=new midterm();
    }

    void panel()
    {
        mainpanel=new JPanel();
        mainpanel.setLayout(new BorderLayout());


        JPanel gamepanel=new JPanel();
        gamepanel.setBorder(BorderFactory.createTitledBorder("Photo Puzzle"));
        gamepanel.setLayout(new GridLayout(3,3));


        ImageIcon sica = new ImageIcon("jung.jpg");
        image1.setBorder(BorderFactory.createLineBorder(Color.blue));
        image1.setIcon(sica);
        image1.setSize(200,200);
        image1.setVisible(true);
        image1.setToolTipText("Jessica Jung Sooyeon");
        gamepanel.add((image1));

        ImageIcon yuri = new ImageIcon("kwon.jpg");
        image2.setIcon(yuri);
        image2.setSize(200,200);
        image2.setVisible(true);
        image2.setToolTipText("Kwon Yuri");
        gamepanel.add(image2);

        ImageIcon tiff = new ImageIcon("hwang.jpg");
        image3.setIcon(tiff);
        image3.setSize(200,200);
        image3.setVisible(true);
        image3.setToolTipText("Tiffany Hwang Miyoung");
        gamepanel.add(image3);

        ImageIcon sunny = new ImageIcon("lee.jpg");
        image4.setIcon(sunny);
        image4.setSize(200,200);
        image4.setVisible(true);
        image4.setToolTipText("Sunny Lee Sunkyu");      
        gamepanel.add(image4);

        ImageIcon soo = new ImageIcon("choi.jpg");
        image5.setIcon(soo);
        image5.setSize(200,200);
        image5.setVisible(true);
        image5.setToolTipText("Choi Sooyoung");
        gamepanel.add(image5);

        ImageIcon hyo = new ImageIcon("kimh.jpg");
        image6.setIcon(hyo);
        image6.setSize(200,200);
        image6.setVisible(true);
        image6.setToolTipText("Kim Hyoyeon");
        gamepanel.add(image6);

        ImageIcon yoona = new ImageIcon("im.jpg");
        image7.setIcon(yoona);
        image7.setSize(200,200);
        image7.setVisible(true);
        image7.setToolTipText("Im Yoona");      
        gamepanel.add(image7);

        ImageIcon taeng = new ImageIcon("kimt.jpg");
        image8.setIcon(taeng);
        image8.setSize(200,200);
        image8.setVisible(true);
        image8.setToolTipText("Kim Taeyeon");
        gamepanel.add(image8);

        ImageIcon hyunnie = new ImageIcon("seo.jpg");
        image9.setIcon(hyunnie);
        image9.setSize(200,200);
        image9.setVisible(true);
        image9.setToolTipText("Seohyun Seo Juhyun");
        gamepanel.add(image9);



        JPanel controls = new JPanel();
        controls.setLayout(new BorderLayout());
        controls.setBorder(BorderFactory.createTitledBorder("Control"));

        JButton newGame = new JButton("New Game");
        controls.add(newGame, BorderLayout.NORTH);


        JButton exitGame = new JButton("Exit");
        controls.add(exitGame, BorderLayout.SOUTH);


        mainpanel.add(gamepanel, BorderLayout.CENTER);
        mainpanel.add(controls, BorderLayout.EAST);


        process jj = new process(); 

        image1.addActionListener(jj);
        image2.addActionListener(jj);
        image3.addActionListener(jj);
        image4.addActionListener(jj);
        image5.addActionListener(jj);
        image6.addActionListener(jj);
        image7.addActionListener(jj);
        image8.addActionListener(jj);
        image9.addActionListener(jj);


    }

    class process implements ActionListener
    {
        public void actionPerformed (ActionEvent e)
        {
            if(e.getSource().equals(image1))
            {
                image2.setVisible(false);
                image3.setVisible(false);
                image4.setVisible(false);
                image5.setVisible(false);
                image6.setVisible(false);
                image7.setVisible(false);
                image8.setVisible(false);
                image9.setVisible(false);
                text.setVisible(false);

            }

            else if(e.getSource().equals(image2))
            {
                image1.setVisible(false);
                image3.setVisible(false);
                image4.setVisible(false);
                image5.setVisible(false);
                image6.setVisible(false);
                image7.setVisible(false);
                image8.setVisible(false);
                image9.setVisible(false);
                text.setVisible(false);

            }

            else if(e.getSource().equals(image3))
            {
                image2.setVisible(false);
                image1.setVisible(false);
                image4.setVisible(false);
                image5.setVisible(false);
                image6.setVisible(false);
                image7.setVisible(false);
                image8.setVisible(false);
                image9.setVisible(false);
                text.setVisible(false);

            }

            else if(e.getSource().equals(image4))
            {
                image2.setVisible(false);
                image3.setVisible(false);
                image1.setVisible(false);
                image5.setVisible(false);
                image6.setVisible(false);
                image7.setVisible(false);
                image8.setVisible(false);
                image9.setVisible(false);
                text.setVisible(false);

            }

            else if(e.getSource().equals(image5))
            {
                image2.setVisible(false);
                image3.setVisible(false);
                image4.setVisible(false);
                image1.setVisible(false);
                image6.setVisible(false);
                image7.setVisible(false);
                image8.setVisible(false);
                image9.setVisible(false);
                text.setVisible(false);

            }

            else if(e.getSource().equals(image6))
            {
                image2.setVisible(false);
                image3.setVisible(false);
                image4.setVisible(false);
                image5.setVisible(false);
                image1.setVisible(false);
                image7.setVisible(false);
                image8.setVisible(false);
                image9.setVisible(false);
                text.setVisible(false);

            }

            else if(e.getSource().equals(image7))
            {
                image2.setVisible(false);
                image3.setVisible(false);
                image4.setVisible(false);
                image5.setVisible(false);
                image6.setVisible(false);
                image1.setVisible(false);
                image8.setVisible(false);
                image9.setVisible(false);
                text.setVisible(false);

            }

            else if(e.getSource().equals(image8))
            {
                image2.setVisible(false);
                image3.setVisible(false);
                image4.setVisible(false);
                image5.setVisible(false);
                image6.setVisible(false);
                image7.setVisible(false);
                image1.setVisible(false);
                image9.setVisible(false);
                text.setVisible(false);

            }

            else if(e.getSource().equals(image9))
            {
                image2.setVisible(false);
                image3.setVisible(false);
                image4.setVisible(false);
                image5.setVisible(false);
                image6.setVisible(false);
                image7.setVisible(false);
                image8.setVisible(false);
                image1.setVisible(false);
                text.setVisible(false);

            }

        }
    }






}
4

3 回答 3

2

你永远不会添加mainpanel到你的JFrame. 还要确保在添加所有组件JFrame.setVisible(true) 后调用。

于 2013-01-22T20:52:38.423 回答
2

主要问题是您没有将显示面板添加到JFrame.

Swing您需要将其添加到content pane.

之后，您要调用pack()它会调整窗格的大小并使其中的所有内容“适合”。

最后调用setVisible(true)不是必需的，但这是一种很好的做法。

我一直觉得这些教程很有帮助。

public midterm()
{
    super("Girls' Generation - I GOT A BOY 4th Korean Album");
    setSize(700,700);
    setLocation(200,30);
    setDefaultCloseOperation(EXIT_ON_CLOSE);
    setResizable(false);

    panel();
    this.getContentPane().add(mainpanel);//<-- add panel to content pane
    this.pack();                         //<-- resize everything
    setVisible(true);                    //<-- display
}
于 2013-01-22T20:52:31.110 回答
0

只需将 Jpanel ( mainpanel ) 添加到您的 Jframe

panel();    
this.getContentPane().add(mainpanel);
setVisible(true);
于 2013-01-22T20:56:09.547 回答