Java 记忆游戏：比赛后禁用JToggleButton

我目前正在尝试编写一个记忆/匹配游戏。我有一个问题，试图找出如何禁用按钮后，用户已经找到匹配的卡。我知道我需要存储第一次单击的值，并将其与第二次单击进行比较，但仍然不确定它是如何工作的。。。如果有人能帮忙，我将不胜感激。谢谢

考虑这段代码，我重新创建了一个更简单的游戏版本，您可以在下面实际运行：

主要内容：

框架的类：

class start {

    JToggleButton DisplayCards[][] = new JToggleButton[4][4];
    Shuffle shuffle = new Shuffle();

    void main() {
        JFrame frame = new JFrame();

        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(600, 600);
        int y = 20;
        int x = 60;

        for (int i = 0; i < DisplayCards.length; ++i) {
            for (int j = 0; j < DisplayCards[i].length; ++j) {
                DisplayCards[i][j] = new JToggleButton("Click Me!");

                DisplayCards[i][j].setBounds(x, y, 90, 126);
                y = y + 135;
                if (y >= 540) {
                    y = 20;
                    x = x + 120;
                }
                frame.add(DisplayCards[i][j]);
                DisplayCards[i][j].addActionListener(new Clicked(i, j, shuffle));
            }
        }

        frame.setLayout(null);
        frame.setVisible(true);
    }
}

---

下面是一个文件mre copy将整个代码粘贴到“Start.java”并运行。 请注意以下评论：

import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JFrame;
import javax.swing.JToggleButton;

//Java Naming Conventions: https://www.geeksforgeeks.org/java-naming-conventions/
public class Start {

    JToggleButton displayCards[][] = new JToggleButton[4][4];
    Shuffle shuffle = new Shuffle();
    private static final int NO_PREVIOUS = -1;
    //static fileds for i,j of previous button clicked
    private int previousI = NO_PREVIOUS, previousJ = NO_PREVIOUS;

    void main() {
        JFrame frame = new JFrame();

        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(600, 600);
        int y = 20, x = 60;

        for (int i = 0; i < displayCards.length; ++i) {
            for (int j = 0; j < displayCards[i].length; ++j) {
                displayCards[i][j] = new JToggleButton("Click Me!");

                displayCards[i][j].setBounds(x, y, 90, 126);
                y = y + 135;
                if (y >= 540) {
                    y = 20;
                    x = x + 120;
                }
                frame.add(displayCards[i][j]);
                displayCards[i][j].addActionListener(new Clicked(i, j, shuffle));
            }
        }

        frame.setLayout(null); //avoid null layout :https://docs.oracle.com/javase/tutorial/uiswing/layout/visual.html
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        Start Start = new Start();
        Start.main();
    }

    //to have easy access to Start members make the ActionListener an inner class
    class Clicked implements ActionListener {

        private static final String HIDE_TEXT = "Click Me!";
        private final Shuffle shuffle;
        private final int i, j;

        public Clicked(int i, int j, Shuffle shuffle) {
            this.i = i;
            this.j = j;
            this.shuffle = shuffle;
        }

        @Override
        public void actionPerformed(ActionEvent e) {

            JToggleButton tBtn = (JToggleButton) e.getSource();
            showButtonText(tBtn, i, j);

            if( previousI == NO_PREVIOUS || previousJ == NO_PREVIOUS){ //no previous selected btn
                previousI = i;
                previousJ = j;
                return;
            }

            JToggleButton previous = displayCards[previousI][previousJ]; //reference to previous button clicked

            if(match(tBtn, previous)){
                 matchFound(tBtn, previous);
            }else{
                matchNotFound(tBtn, previous);
            }
        }

        private void showButtonText(JToggleButton btn, int i, int j) {
            btn.setText(shuffle.cards[i][j]);
            btn.setEnabled(false);
        }

        private void resetButton(JToggleButton btn) {
            btn.setForeground(Color.BLACK);
            btn.setText(HIDE_TEXT);
            btn.setSelected(false);
            btn.setEnabled(true);
        }

        private boolean match(JToggleButton btn1, JToggleButton btn2) {
            return btn1.getText().equals(btn2.getText());
        }

        private void matchFound(JToggleButton btn1, JToggleButton btn2) {
            System.out.println("Correct!");
            btn1.setEnabled(false);
            btn2.setEnabled(false);
            previousI = NO_PREVIOUS ; previousJ = NO_PREVIOUS;
        }

        private void matchNotFound(JToggleButton tBtn, JToggleButton previous) {
            System.out.println("No match");
            resetButton(previous);
            previousI = i ; previousJ = j;
        }
    }
}

class Shuffle {

    String[][] cards = {
        {"A", "B", "C", "D"},
        {"E", "F", "G", "H"},
        {"A", "B", "C", "D"},
        {"E", "F", "G", "H"}

    };

    public void random() {
        for (int i = 0; i < cards.length; i++) {
            for (int j = 0; j < cards[i].length; j++) {
                int i1 = (int) (Math.random() * cards.length);
                int j1 = (int) (Math.random() * cards[i].length);

                String temp = cards[i][j];
                cards[i][j] = cards[i1][j1];
                cards[i1][j1] = temp;
            }

        }
    }
}

---

1 Java GUI必须在不同的操作系统、屏幕大小、屏幕分辨率等上工作，在不同的地区使用不同的PLAF。因此，它们不利于像素完美布局。而是使用布局管理器，或与布局填充和边框一起使用。这看起来很适合GridLayout2游戏的一个更简单的版本，你可以在那里运行，有缺少的导入、不完整的类和缺少的类。为了更快地获得更好的帮助，请添加或。3请学习常见的Java命名约定-例如，EachWordUpperCaseClass、firstWordLowerCaseMethod、firstWordLowerCaseAttribute，除非它是大写常量并一致使用。欢迎使用堆栈溢出。请看：请看

class Shuffle {

    String[][] cards = {
        {"A", "B", "C", "D"},
        {"E", "F", "G", "H"},
        {"A", "B", "C", "D"},
        {"E", "F", "G", "H"}

    };

    public void random() {
        for (int i = 0; i < cards.length; i++) {
            for (int j = 0; j < cards[i].length; j++) {
                int i1 = (int) (Math.random() * cards.length);
                int j1 = (int) (Math.random() * cards[i].length);

                String temp = cards[i][j];
                cards[i][j] = cards[i1][j1];
                cards[i1][j1] = temp;
            }

        }
    }
}

class Clicked implements ActionListener {

    String first;
    start matching = new start();
    boolean state = false;
    Shuffle shuffle;
    JToggleButton tBtn;
    private int i;
    private int j;
    int posI;
    int posJ;

    public Clicked(int i, int j, Shuffle shuffle) {
        this.i = i;
        this.j = j;
        this.shuffle = shuffle;
    }

    public void actionPerformed(ActionEvent e) {
        tBtn = (JToggleButton) e.getSource();
        if (tBtn.isSelected()) {
            tBtn.setText(shuffle.cards[i][j]);
            if (!state) {
                first = shuffle.cards[i][j];
                posI = i;
                posJ = j;
                System.out.println(first);
                state = true;

            } else {
                if (first.equals(shuffle.cards[i][j])) {
                    tBtn.setEnabled(false);
                    System.out.println("Correct!");
                } else if (!first.equals(shuffle.cards[i][j])) {
                    System.out.println("Not it");
                    tBtn.setText("Click Me!");
                    matching.DisplayCards[posI][posJ].setText("Click Me!");
                    first = null;
                    posI = 0;
                    posJ = 0;
                    state = false;
                }
            }
        } else {
            tBtn.setText("Click Me!");
        }
    }
}

import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JFrame;
import javax.swing.JToggleButton;

//Java Naming Conventions: https://www.geeksforgeeks.org/java-naming-conventions/
public class Start {

    JToggleButton displayCards[][] = new JToggleButton[4][4];
    Shuffle shuffle = new Shuffle();
    private static final int NO_PREVIOUS = -1;
    //static fileds for i,j of previous button clicked
    private int previousI = NO_PREVIOUS, previousJ = NO_PREVIOUS;

    void main() {
        JFrame frame = new JFrame();

        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(600, 600);
        int y = 20, x = 60;

        for (int i = 0; i < displayCards.length; ++i) {
            for (int j = 0; j < displayCards[i].length; ++j) {
                displayCards[i][j] = new JToggleButton("Click Me!");

                displayCards[i][j].setBounds(x, y, 90, 126);
                y = y + 135;
                if (y >= 540) {
                    y = 20;
                    x = x + 120;
                }
                frame.add(displayCards[i][j]);
                displayCards[i][j].addActionListener(new Clicked(i, j, shuffle));
            }
        }

        frame.setLayout(null); //avoid null layout :https://docs.oracle.com/javase/tutorial/uiswing/layout/visual.html
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        Start Start = new Start();
        Start.main();
    }

    //to have easy access to Start members make the ActionListener an inner class
    class Clicked implements ActionListener {

        private static final String HIDE_TEXT = "Click Me!";
        private final Shuffle shuffle;
        private final int i, j;

        public Clicked(int i, int j, Shuffle shuffle) {
            this.i = i;
            this.j = j;
            this.shuffle = shuffle;
        }

        @Override
        public void actionPerformed(ActionEvent e) {

            JToggleButton tBtn = (JToggleButton) e.getSource();
            showButtonText(tBtn, i, j);

            if( previousI == NO_PREVIOUS || previousJ == NO_PREVIOUS){ //no previous selected btn
                previousI = i;
                previousJ = j;
                return;
            }

            JToggleButton previous = displayCards[previousI][previousJ]; //reference to previous button clicked

            if(match(tBtn, previous)){
                 matchFound(tBtn, previous);
            }else{
                matchNotFound(tBtn, previous);
            }
        }

        private void showButtonText(JToggleButton btn, int i, int j) {
            btn.setText(shuffle.cards[i][j]);
            btn.setEnabled(false);
        }

        private void resetButton(JToggleButton btn) {
            btn.setForeground(Color.BLACK);
            btn.setText(HIDE_TEXT);
            btn.setSelected(false);
            btn.setEnabled(true);
        }

        private boolean match(JToggleButton btn1, JToggleButton btn2) {
            return btn1.getText().equals(btn2.getText());
        }

        private void matchFound(JToggleButton btn1, JToggleButton btn2) {
            System.out.println("Correct!");
            btn1.setEnabled(false);
            btn2.setEnabled(false);
            previousI = NO_PREVIOUS ; previousJ = NO_PREVIOUS;
        }

        private void matchNotFound(JToggleButton tBtn, JToggleButton previous) {
            System.out.println("No match");
            resetButton(previous);
            previousI = i ; previousJ = j;
        }
    }
}

class Shuffle {

    String[][] cards = {
        {"A", "B", "C", "D"},
        {"E", "F", "G", "H"},
        {"A", "B", "C", "D"},
        {"E", "F", "G", "H"}

    };

    public void random() {
        for (int i = 0; i < cards.length; i++) {
            for (int j = 0; j < cards[i].length; j++) {
                int i1 = (int) (Math.random() * cards.length);
                int j1 = (int) (Math.random() * cards[i].length);

                String temp = cards[i][j];
                cards[i][j] = cards[i1][j1];
                cards[i1][j1] = temp;
            }

        }
    }
}

public class Start {

    //static fileds for i,j of previous button clicked
    private int previousI = NO_PREVIOUS, previousJ = NO_PREVIOUS;
    private static final String HIDE_TEXT = "Click Me!";
    private static final int W = 96, H = 126, NO_PREVIOUS = -1, SIZE = 4, GAP = 5;

    JToggleButton displayCards[][] = new JToggleButton[SIZE][SIZE];
    Shuffle shuffle = new Shuffle();

    Start() {
        JFrame frame = new JFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JPanel board = new JPanel();
        board.setLayout(new GridLayout(displayCards.length, displayCards[0].length, GAP, GAP));

        for (int i = 0; i < displayCards.length; ++i) {
            for (int j = 0; j < displayCards[i].length; ++j) {
                JToggleButton btn = new JToggleButton(HIDE_TEXT);
                btn.setPreferredSize(new Dimension(W,H));
                btn.addActionListener(new Clicked(i, j, shuffle));
                displayCards[i][j] = btn;
                board.add(btn);
            }
        }

        frame.add(board);
        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        new Start();
    }

    //to have easy access to Start members make the ActionListener an inner class
    class Clicked implements ActionListener {

        private final Shuffle shuffle;
        private final int i, j;

        public Clicked(int i, int j, Shuffle shuffle) {
            this.i = i;
            this.j = j;
            this.shuffle = shuffle;
        }

        @Override
        public void actionPerformed(ActionEvent e) {

            JToggleButton tBtn = (JToggleButton) e.getSource();
            showButtonText(tBtn, i, j);

            if( previousI == NO_PREVIOUS || previousJ == NO_PREVIOUS){ //no previous selected btn
                previousI = i;
                previousJ = j;
                return;
            }

            JToggleButton previous = displayCards[previousI][previousJ]; //reference to previous button clicked

            if(match(tBtn, previous)){
                 matchFound(tBtn, previous);
            }else{
                matchNotFound(tBtn, previous);
            }
        }

        private void showButtonText(JToggleButton btn, int i, int j) {
            btn.setText(shuffle.cards[i][j]);
            btn.setEnabled(false);
        }

        private void resetButton(JToggleButton btn) {
            btn.setForeground(Color.BLACK);
            btn.setText(HIDE_TEXT);
            btn.setSelected(false);
            btn.setEnabled(true);
        }

        private boolean match(JToggleButton btn1, JToggleButton btn2) {
            return btn1.getText().equals(btn2.getText());
        }

        private void matchFound(JToggleButton btn1, JToggleButton btn2) {
            System.out.println("Correct!");
            btn1.setEnabled(false);
            btn2.setEnabled(false);
            previousI = NO_PREVIOUS ; previousJ = NO_PREVIOUS;
        }

        private void matchNotFound(JToggleButton tBtn, JToggleButton previous) {
            System.out.println("No match");
            resetButton(previous);
            previousI = i ; previousJ = j;
        }
    }
}