java - 2D JButton 数组，想要为游戏添加 Action 监听器

Question

我想制作 TIC TAC TOE 游戏，但我有一个问题。我创建了一个 2D 数组，但我不知道如何解决它们以使 ActionListener 工作。

这是我的代码:

public class GUI {
    public static JButton[][] buttonsall = new JButton[3][3];
    public static JFrame frame = new JFrame("TIC TAC TOE");
    public static void draw() {
        // frame
        frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE);
        frame.setVisible(true);
        frame.setResizable(false);
        frame.setBackground(Color.white);
        frame.setBounds(500, 500, 600,600);
        // actionListener
        ActionListener listener = new ActionListener() {
             @Override
                public void actionPerformed(ActionEvent e) {
                    if (e.getSource() instanceof JButton) {
                        //dont know further here
                    }
                }
            };

        //buttons buttonsall[x][y]
        for (int y = 0; y<3;y++) {
            for (int x = 0; x<3;x++) {
                buttonsall[x][y] = new JButton();
                buttonsall[x][y].setVisible(true);
                buttonsall[x][y].setSize(80, 80);
                buttonsall[x][y].addActionListener(listener);
                System.out.println(buttonsall[x][y] +" "+x +" "+y);
                frame.add(buttonsall[x][y]);
                buttonsall[x][y].setBackground(Color.white);    
            }   
        }
        frame.setLayout(new GridLayout(3,3));
    }

Answer 1

您可以在创建每个 JButton 时为其设置名称。我更新您的代码如下:

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

public class GUI {
    public static JButton[][] buttonsall = new JButton[3][3];
    public static JFrame frame = new JFrame("TIC TAC TOE");

    public static void draw() {
        // frame
        frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE);
        frame.setVisible(true);
        frame.setResizable(false);
        frame.setBackground(Color.white);
        frame.setBounds(500, 500, 600, 600);
        // actionListener
        ActionListener listener = new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                if (e.getSource() instanceof JButton) {
                    //dont know further here
                    JButton b = (JButton)e.getSource();

                    System.out.println("Button is:" + b.getName());
                }
            }
        };

        //buttons buttonsall[x][y]
        for (int y = 0; y < 3; y++) {
            for (int x = 0; x < 3; x++) {
                buttonsall[x][y] = new JButton();
                buttonsall[x][y].setVisible(true);
                buttonsall[x][y].setName("Button_" + x + "_" + y);
                buttonsall[x][y].setSize(80, 80);
                buttonsall[x][y].addActionListener(listener);
                System.out.println(buttonsall[x][y] + " " + x + " " + y);
                frame.add(buttonsall[x][y]);
                buttonsall[x][y].setBackground(Color.white);
            }
        }
        frame.setLayout(new GridLayout(3, 3));
    }

    public static void main(String[] args) {

        GUI.draw();

    }
}