我无法找到一个好的算法，只允许我在切换的图像上同时拥有两个选定的按钮。如果两个按钮上的切换图像相同，我想隐藏它们。如果不是，我希望他们回到原来的形象，我在卡面朝下时使用（笑脸）。我使用一个在JFrame中打开我的JPanel的启动类。 我不是母语人士，所以我希望自己能说清楚。
public class MemoryMain extends JPanel implements ActionListener{
private ImageIcon iconStart = new ImageIcon ("images\\smiley.jpg");
private ImageIcon icon1 = new ImageIcon ("images\\amazed.jpg");
private ImageIcon icon2 = new ImageIcon ("images\\datass.jpg");
private ImageIcon icon3 = new ImageIcon ("images\\lol.jpg");
private ImageIcon icon4 = new ImageIcon ("images\\megusta.jpg");
private ImageIcon icon5 = new ImageIcon ("images\\mog.png");
private ImageIcon icon6 = new ImageIcon ("images\\satisfied.jpg");
private JButton btn1 = new JButton ();
private JButton btn2 = new JButton ();
private JButton btn3 = new JButton ();
private JButton btn4 = new JButton ();
private JButton btn5 = new JButton ();
private JButton btn6 = new JButton ();
private JButton btn7 = new JButton ();
private JButton btn8 = new JButton ();
private JButton btn9 = new JButton ();
private JButton btn10 = new JButton ();
private JButton btn11 = new JButton ();
private JButton btn12 = new JButton ();
private ImageIcon[] iconArray = new ImageIcon[12];
public MemoryMain () {
setPreferredSize(new Dimension (800, 600));
setBackground (Color.CYAN);
this.setLayout(new GridLayout(3, 4));
btn1.setIcon(iconStart);
btn2.setIcon(iconStart);
btn3.setIcon(iconStart);
btn4.setIcon(iconStart);
btn5.setIcon(iconStart);
btn6.setIcon(iconStart);
btn7.setIcon(iconStart);
btn8.setIcon(iconStart);
btn9.setIcon(iconStart);
btn10.setIcon(iconStart);
btn11.setIcon(iconStart);
btn12.setIcon(iconStart);
btn1.setPreferredSize(new Dimension (80,80));
btn2.setPreferredSize(new Dimension (80,80));
btn3.setPreferredSize(new Dimension (80,80));
btn4.setPreferredSize(new Dimension (80,80));
btn5.setPreferredSize(new Dimension (80,80));
btn6.setPreferredSize(new Dimension (80,80));
btn7.setPreferredSize(new Dimension (80,80));
btn8.setPreferredSize(new Dimension (80,80));
btn9.setPreferredSize(new Dimension (80,80));
btn10.setPreferredSize(new Dimension (80,80));
btn11.setPreferredSize(new Dimension (80,80));
btn12.setPreferredSize(new Dimension (80,80));
btn1.addActionListener(this);
btn2.addActionListener(this);
btn3.addActionListener(this);
btn4.addActionListener(this);
btn5.addActionListener(this);
btn6.addActionListener(this);
btn7.addActionListener(this);
btn8.addActionListener(this);
btn9.addActionListener(this);
btn10.addActionListener(this);
btn11.addActionListener(this);
btn12.addActionListener(this);
add(btn1);
add(btn2);
add(btn3);
add(btn4);
add(btn5);
add(btn6);
add(btn7);
add(btn8);
add(btn9);
add(btn10);
add(btn11);
add(btn12);
this.iconArray = randomArray();
}
public void actionPerformed(ActionEvent e) {
if (e.getSource() == btn1) {
Image temp = iconArray[0].getImage();
Image resizedImage = temp.getScaledInstance(200, 200, java.awt.Image.SCALE_SMOOTH);
ImageIcon icon = new ImageIcon(resizedImage);
btn1.setIcon(icon);
}
if (e.getSource() == btn2) {
Image temp = iconArray[1].getImage();
Image resizedImage = temp.getScaledInstance(200, 200, java.awt.Image.SCALE_SMOOTH);
ImageIcon icon = new ImageIcon(resizedImage);
btn2.setIcon(icon);
}
if (e.getSource() == btn3) {
Image temp = iconArray[2].getImage();
Image resizedImage = temp.getScaledInstance(200, 200, java.awt.Image.SCALE_SMOOTH);
ImageIcon icon = new ImageIcon(resizedImage);
btn3.setIcon(icon);
}
if (e.getSource() == btn4) {
Image temp = iconArray[3].getImage();
Image resizedImage = temp.getScaledInstance(200, 200, java.awt.Image.SCALE_SMOOTH);
ImageIcon icon = new ImageIcon(resizedImage);
btn4.setIcon(icon);
}
if (e.getSource() == btn5) {
Image temp = iconArray[4].getImage();
Image resizedImage = temp.getScaledInstance(200, 200, java.awt.Image.SCALE_SMOOTH);
ImageIcon icon = new ImageIcon(resizedImage);
btn5.setIcon(icon);
}
if (e.getSource() == btn6) {
Image temp = iconArray[5].getImage();
Image resizedImage = temp.getScaledInstance(200, 200, java.awt.Image.SCALE_SMOOTH);
ImageIcon icon = new ImageIcon(resizedImage);
btn6.setIcon(icon);
}
if (e.getSource() == btn7) {
Image temp = iconArray[6].getImage();
Image resizedImage = temp.getScaledInstance(200, 200, java.awt.Image.SCALE_SMOOTH);
ImageIcon icon = new ImageIcon(resizedImage);
btn7.setIcon(icon);
}
if (e.getSource() == btn8) {
Image temp = iconArray[7].getImage();
Image resizedImage = temp.getScaledInstance(200, 200, java.awt.Image.SCALE_SMOOTH);
ImageIcon icon = new ImageIcon(resizedImage);
btn8.setIcon(icon);
}
if (e.getSource() == btn9) {
Image temp = iconArray[8].getImage();
Image resizedImage = temp.getScaledInstance(200, 200, java.awt.Image.SCALE_SMOOTH);
ImageIcon icon = new ImageIcon(resizedImage);
btn9.setIcon(icon);
}
if (e.getSource() == btn10) {
Image temp = iconArray[9].getImage();
Image resizedImage = temp.getScaledInstance(200, 200, java.awt.Image.SCALE_SMOOTH);
ImageIcon icon = new ImageIcon(resizedImage);
btn10.setIcon(icon);
}
if (e.getSource() == btn11) {
Image temp = iconArray[10].getImage();
Image resizedImage = temp.getScaledInstance(200, 200, java.awt.Image.SCALE_SMOOTH);
ImageIcon icon = new ImageIcon(resizedImage);
btn11.setIcon(icon);
}
if (e.getSource() == btn12) {
Image temp = iconArray[11].getImage();
Image resizedImage = temp.getScaledInstance(200, 200, java.awt.Image.SCALE_SMOOTH);
ImageIcon icon = new ImageIcon(resizedImage);
btn12.setIcon(icon);
}
}
public ImageIcon[] randomArray () {
iconArray[0] = icon1;
iconArray[1] = icon1;
iconArray[2] = icon2;
iconArray[3] = icon2;
iconArray[4] = icon3;
iconArray[5] = icon3;
iconArray[6] = icon4;
iconArray[7] = icon4;
iconArray[8] = icon5;
iconArray[9] = icon5;
iconArray[10] = icon6;
iconArray[11] = icon6;
for (int i = iconArray.length - 1; i > 0; i--) {
int j = (int) Math.floor(Math.random() * (i + 1));
ImageIcon temp = iconArray[i];
iconArray[i] = iconArray[j];
iconArray[j] = temp;
}
return iconArray;
}
}
答案 0 :(得分：0)
主要问题是您不使用数组。您正在处理按钮的12个btn__字段以及图标的6个icon_字段。当您编写actionPerformed()方法时，您应该意识到“必须有一种比检查btn1到btn12”更简单的方法。答案是“数组”。
将所有图标保存在数组中，以便您轻松使用它们。保存数组中的所有按钮，以便您也可以轻松使用它们。拥有此功能后，您可以使用简单的数组索引访问来访问正确的图标或按钮。也许你可以使用一个额外的阵列来保存卡面临或面临的信息。或者甚至可以创建一个新的类Card，其面向上时图标的字段为picture，如果此卡当前面朝上或朝下，则保存一个布尔字段isFacedUp。