我怎样才能让我的 JButtons 进入与我的图像相同的 window？

Question

我正在尝试编写一个二十一点游戏，我想要一个 window，其中既有 table 图像，又有 hit/stay 按钮。但是，即使我尝试将 hit/stay 按钮对象添加（@param）到框架中，按钮也会单独显示 windows 作为 table.

我的代码：

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


public class BlackjackTable extends JComponent{

  private static final int WIDTH = 1200;
  private static final int HEIGHT = 800;
  private Rectangle table;
  private JButton hitOrStay;

  public BlackjackTable(){
    table = new Rectangle(0,0,WIDTH,HEIGHT);
    JFrame frame = new JFrame();
    JLabel lab = new JLabel(new ImageIcon("blackjackTableCanvas.jpg"));
    frame.setSize(1200,800);
    lab.setSize(1200,800);
    frame.add(lab);
    hitOrStay = new HitOrStayButton();
    frame.add(hitOrStay);
    frame.setTitle("Test Canvas");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.add(this);
    frame.setVisible(true);
  }

  public void paintComponent(Graphics g){
    Graphics2D g2 = (Graphics2D) g;
    g2.draw(table);
  }

  public static void main(String[] args){
    BlackjackTable b = new BlackjackTable();

  }
}

我的点击或停留按钮：

public class HitOrStayButton extends JButton{

JButton stayButton = new JButton("STAY");
JButton hitButton = new JButton("HIT");

public HitOrStayButton(){
  ActionListener pressChoice = new DecisionListener();
  hitButton.addActionListener(pressChoice);
  stayButton.addActionListener(pressChoice);
  JPanel testPanel = new JPanel();
  testPanel.add(hitButton);
  testPanel.add(stayButton);
  JFrame testFrame = new JFrame();
  testFrame.add(testPanel);
  testFrame.setSize(300, 150);

  testFrame.setVisible(true);
}

class DecisionListener implements ActionListener{

    public void actionPerformed(ActionEvent a){

      if(a.getSource() == hitButton){
        System.out.println("YOU CHOSE HIT!");
      }
      else if(a.getSource() == stayButton){
        System.out.println("YOU CHOSE STAY!");
      }

    }
  }


  public static void main(String[] args){
    HitOrStayButton h = new HitOrStayButton();
  }

}

如何让框架在底部的面板中包含图像和按钮？

Answer 1

public class HitOrStayButton extends JButton{

 JButton stayButton = new JButton("STAY");
 JButton hitButton = new JButton("HIT");

你认为一辆车里面还有两辆车吗？

首先通过tutorials。

Answer 2

in which both the table image sits, and the hit/stay buttons sits

您需要学会有效地使用 "layout managers"。框架内容窗格的默认布局管理器是 BorderLayout。您不能只将多个组件添加到同一位置。添加组件时，您需要指定不同的约束条件（如 BorderLayout.CENTER 和 BorderLayout.PAGE_START）。

阅读 How to Use BorderLayout 上的 Swing 教程部分，了解更多信息和工作示例以帮助您入门。

我怎样才能让我的 JButtons 进入与我的图像相同的 window？

How can I get my JButtons to go into the same window as my image?

java

swing

jcomponent