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所以我有一个小程序，它将显示 2 个 JFrame，一个带有绘制形状的脸部，另一个带有一些编辑选项。每当我运行程序时，它都会显示两个框架，但由于某种原因，它会显示面部框架上工具栏框架中的按钮。它们不是活动按钮，基本上只是它们的图像。这是一个截图：http: 在此处输入图像描述 //i1318.photobucket.com/albums/t659/brianbolnick1/scrnshot_zps524c99ee.png）

我试图让我的主要内容尽可能简单：

    //draw face panel
    Face face = new Face();
    JFrame frame = new JFrame();
    frame.add(face);
    frame.setSize(600,400);
    frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE);
    frame.setLocationRelativeTo(null);
    frame.setVisible(true); 

    //draw toolbar panel
    JFrame frame1 = new FaceClass ();
    frame1.setTitle("Toolbar");
    frame1.setSize(200,150);
    frame1.setLocation(200,100);
    frame1.setDefaultCloseOperation(frame1.EXIT_ON_CLOSE);
    frame1.setVisible(true);

从我所见，我认为没有任何问题。任何人都可以看到任何可能有问题的地方吗？或者问题可能出在其他地方（“Face”类的构造函数或paintComponent）？请帮忙！我一直在研究这个问题，但似乎无法弄清楚......如果您需要查看更多代码，请询问，我不想在墙上贴上代码。

这是面部类的大部分内容：

public Face () {
    //register mouse click activity
    addMouseMotionListener(new MouseMotionAdapter() {
        @Override public void mouseDragged (MouseEvent event) {
            selectShapeUnder(event.getX(), event.getY());
            repaint();
        }
    });
    addMouseListener(new MouseAdapter() {
        @Override public void mousePressed (MouseEvent event) {
            selectShapeUnder(event.getX(), event.getY());
            repaint();
        }
    });

}

 protected void paintComponent (Graphics g) {
        Graphics2D graphics = (Graphics2D)g;

        graphics.setColor((selected == face) ? Color.CYAN : Color.GREEN);
        graphics.fill(face);

        graphics.setColor((selected == mouth) ? Color.YELLOW : Color.RED);
        graphics.fill(mouth);

        graphics.setColor((selected == eyeLeft || selected == eyeRight) ? Color.RED     
: Color.WHITE);
        graphics.fill(eyeLeft);
        graphics.fill(eyeRight);

        graphics.setColor(Color.BLACK);
        graphics.fill(pupilLeft);
        graphics.fill(pupilRight);
        g.drawLine(220, 185, 270, 185);
        g.drawLine(220, 185, 260, 130);

        repaint();

    }//end pC


public void selectShapeUnder (int x, int y) {
        Shape oldSelected = selected;

        if (eyeLeft.contains(x, y)){
            selected = eyeLeft; 
        }//end if 
        else if (eyeRight.contains(x, y)){
            selected = eyeRight;    
        }//end else if
        else if (mouth.contains(x, y)){
            selected = mouth; 
        }//end else if
        else if (face.contains(x, y)) {
            selected = face;
        }//end else if
        else
            selected = null;
        if (selected != oldSelected)
            repaint();
    }//end selectShapeUnder
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