Question

JButton两个显示2个地方和大小，有两个类

与尺寸和位置不一致请帮忙，谢谢代码分为两部分

最终公共课ChessMain {

JFrame frame; 

public static void main(String[] args) {
    new ChessMain().go();
}

private void go() {
    frame = new JFrame("Test");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  //  Container contentPane = frame.getContentPane();
    frame.setContentPane(new DrawPanelChess ());
    frame.setVisible(true);
    frame.setExtendedState(Frame.MAXIMIZED_BOTH);

    Icon warnIcon = new ImageIcon("white_King_Chess.png");
    JButton button2 = new JButton(warnIcon);  
    button2.setLayout(null);
    button2.setBounds(100,0, 100, 100); 
    frame.add(button2);


 }

}

类DrawPanelChess扩展了JPanel {

private static final long serialVersionUID = 9166938856558245300L;

public void paintComponent（Graphics g）{

        g.setColor(Color.BLACK);
        g.fillRect(0, 0, this.getWidth(), this.getHeight());    


        g.setColor(Color.WHITE);

        {//row 1                        
        g.fillRect(0, 0, this.getWidth() / 8, this.getHeight() / 8);                         
        g.fillRect(this.getWidth() / 4, 0, this.getWidth() / 8, this.getHeight() / 8);                         
        g.fillRect(this.getWidth() / 2, 0, this.getWidth() / 8, this.getHeight() / 8);                         
        g.fillRect(this.getWidth() / 8 * 6, 0, this.getWidth() / 8, this.getHeight() / 8);                         
        }

        {//row 2                        
        g.fillRect(this.getWidth() / 8, this.getHeight() / 8, this.getWidth() / 8, this.getHeight() / 8);                         
        g.fillRect(this.getWidth() / 8 * 3, this.getHeight() / 8, this.getWidth() / 8, this.getHeight() / 8);                        
        g.fillRect(this.getWidth() / 8 * 5, this.getHeight() / 8, this.getWidth() / 8, this.getHeight() / 8);                         
        g.fillRect(this.getWidth() / 8 * 7, this.getHeight() / 8, this.getWidth() / 8, this.getHeight() / 8);                         
        }

        {//row 3                        
        g.fillRect(0, this.getHeight() / 4, this.getWidth() / 8, this.getHeight() / 8);                         
        g.fillRect(this.getWidth() / 4, this.getHeight() / 4, this.getWidth() / 8, this.getHeight() / 8);                         
        g.fillRect(this.getWidth() / 2, this.getHeight() / 4, this.getWidth() / 8, this.getHeight() / 8);                         
        g.fillRect(this.getWidth() / 8 * 6, this.getHeight() / 4, this.getWidth() / 8, this.getHeight() / 8);                         
        }

        {//row 4                        
        g.fillRect(this.getWidth() / 8, this.getHeight() / 8 * 3, this.getWidth() / 8, this.getHeight() / 8);                         
        g.fillRect(this.getWidth() / 8 * 3, this.getHeight() / 8 * 3, this.getWidth() / 8, this.getHeight() / 8);                        
        g.fillRect(this.getWidth() / 8 * 5, this.getHeight() / 8 * 3, this.getWidth() / 8, this.getHeight() / 8);                         
        g.fillRect(this.getWidth() / 8 * 7, this.getHeight() / 8 * 3, this.getWidth() / 8, this.getHeight() / 8);                         
        }

        {//row 5                        
        g.fillRect(0, this.getHeight() / 2, this.getWidth() / 8, this.getHeight() / 8);                         
        g.fillRect(this.getWidth() / 4, this.getHeight() / 2, this.getWidth() / 8, this.getHeight() / 8);                         
        g.fillRect(this.getWidth() / 2, this.getHeight() / 2, this.getWidth() / 8, this.getHeight() / 8);                         
        g.fillRect(this.getWidth() / 8 * 6, this.getHeight() / 2, this.getWidth() / 8, this.getHeight() / 8);                         
        }

        {//row 6                        
        g.fillRect(this.getWidth() / 8, this.getHeight() / 8 * 5, this.getWidth() / 8, this.getHeight() / 8);                         
        g.fillRect(this.getWidth() / 8 * 3, this.getHeight() / 8 * 5, this.getWidth() / 8, this.getHeight() / 8);                        
        g.fillRect(this.getWidth() / 8 * 5, this.getHeight() / 8 * 5, this.getWidth() / 8, this.getHeight() / 8);                         
        g.fillRect(this.getWidth() / 8 * 7, this.getHeight() / 8 * 5, this.getWidth() / 8, this.getHeight() / 8);                         
        }

        {//row 7                        
        g.fillRect(0, this.getHeight() / 8 * 6, this.getWidth() / 8, this.getHeight() / 8);                         
        g.fillRect(this.getWidth() / 4, this.getHeight() / 8 * 6, this.getWidth() / 8, this.getHeight() / 8);                         
        g.fillRect(this.getWidth() / 2, this.getHeight() / 8 * 6, this.getWidth() / 8, this.getHeight() / 8);                         
        g.fillRect(this.getWidth() / 8 * 6, this.getHeight() / 8 * 6, this.getWidth() / 8, this.getHeight() / 8);                         
        }

        {//row 8                        
        g.fillRect(this.getWidth() / 8, this.getHeight() / 8 * 7, this.getWidth() / 8, this.getHeight() / 8);                         
        g.fillRect(this.getWidth() / 8 * 3, this.getHeight() / 8 * 7, this.getWidth() / 8, this.getHeight() / 8);                        
        g.fillRect(this.getWidth() / 8 * 5, this.getHeight() / 8 * 7, this.getWidth() / 8, this.getHeight() / 8);                         
        g.fillRect(this.getWidth() / 8 * 7, this.getHeight() / 8 * 7, this.getWidth() / 8, this.getHeight() / 8);                         
        }

       // System.out.println("\u2654");

        repaint();

} }

Answer 1

在将DrawPanelChess JPanel添加为框架的contentPane之后，似乎将按钮添加到框架中。当您更改帧大小时，它会重新定位。如果您打算添加更多组件，但暂时不用添加

，那么未来不是一件好事

frame.setResizable(false);

我还建议使用像GridBagLayout这样的东西来指定你希望它与棋盘一起定位的位置。

我的JButton没有一致地显示，它的大小不同，不在同一个地方

1 个答案: