《JAVA程序设计》第一次——《猜猜看》游戏

<pre class="java" name="code">import javax.imageio.ImageIO;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
import javax.swing.JLabel;
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.Image;
import java.awt.SystemColor;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.File;
import java.io.FileFilter;
import java.io.IOException;
import java.util.Random;

public class SmallGame extends JFrame {
/**
*
*/
private static final long serialVersionUID = 1L;

private JPanel contentPane;
private JTextField tfDir;
private JTextField tfClass;
File[] fileArray; // 文件夹下所有文件
int NUM_IMG = 0; // 文件总数目
int index = 0; // 当前文件的序号
int i = 0;

JLabel jlbImg1 = null;
JLabel jlbImg2 = null;
JLabel jlbImg3 = null;

/**
* Launch the application.
*/
class myFileFilter implements FileFilter {

@Override
public boolean accept(File pathname) {
String filename = pathname.getName().toLowerCase();
if (filename.contains(".jpg")) {
return false;
} else {
return true;
}
}
}

public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
SmallGame frame = new SmallGame();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}

/**
* Create the frame.
*/
public SmallGame() {
setTitle("\u731C\u731C\u770B\u6E38\u620FV0.1");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 645, 500);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);

// 选择目录 按钮的处理程序
JButton btnDir = new JButton("\u9009\u62E9\u76EE\u5F55");
btnDir.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
JFileChooser jfc = new JFileChooser();
jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
jfc.showDialog(new JLabel(), "选择");
File file = jfc.getSelectedFile();
tfDir.setText(file.getAbsolutePath());
if (file != null && file.isDirectory()) {

// 获取文件夹下所有的文件
fileArray = file.listFiles();
NUM_IMG = fileArray.length;

}
}
});
btnDir.setBounds(26, 26, 93, 23);
contentPane.add(btnDir);

// 文本框，显示目录
tfDir = new JTextField();
tfDir.setEditable(false);
tfDir.setBounds(125, 27, 450, 21);
contentPane.add(tfDir);
tfDir.setColumns(10);
// 选择班级 按钮的处理程序
JButton btnClass = new JButton("\u9009\u62E9\u73ED\u7EA7");
btnClass.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JFileChooser jfc=new JFileChooser();
jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES );
jfc.showDialog(new JLabel(), "选择");
File file=jfc.getSelectedFile();
tfClass.setText(file.getAbsolutePath());

}
});
btnClass.setBounds(26, 59, 93, 23);
contentPane.add(btnClass);

//设置提醒文字
JLabel j1 = new JLabel("猜猜我是谁，请点我相片");
j1.setBounds(5, 100, 200, 33);
this.add(j1);

// 文本框，显示班级文件
tfClass = new JTextField();
tfClass.setEditable(false);
tfClass.setBounds(125, 60, 363, 21);
contentPane.add(tfClass);
tfClass.setColumns(10);

//设置提醒文字
JLabel j11 = new JLabel("猜猜我是谁，请点我相片");
j11.setBounds(5, 100, 200, 33);
this.add(j11);

// 标签，显示带猜测学生姓名
final JLabel lbGuessName = new JLabel("学生姓名");
lbGuessName.setBounds(259, 91, 140, 23);
contentPane.add(lbGuessName);

// 标签，显示第一个学生相片
final JLabel lblImg1 = new JLabel("NO.1");

lblImg1.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent arg0) {
if (arg0.getSource() == lblImg1) {
if ((lblImg1.getText().equals(lbGuessName.getText()))) {
JOptionPane.showMessageDialog(null, "YES！你猜对了！", "提示",
JOptionPane.PLAIN_MESSAGE);

} else {
JOptionPane.showMessageDialog(null, "NO！你猜错了！", "错误",
JOptionPane.ERROR_MESSAGE);

}

}
}
});
lblImg1.setBounds(26, 155, 150, 200);
contentPane.add(lblImg1);

// 标签，显示第二个学生相片
final JLabel lblImg2 = new JLabel("NO.2");
lblImg2.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent arg1) {
if (arg1.getSource() == lblImg2) {
if ((lblImg2.getText().equals(lbGuessName.getText()))) {
JOptionPane.showMessageDialog(null, "YES！你猜对了！", "提示",
JOptionPane.PLAIN_MESSAGE);

} else {
JOptionPane.showMessageDialog(null, "NO！你猜错了！", "错误",
JOptionPane.ERROR_MESSAGE);

}
}
}
});
lblImg2.setForeground(Color.BLACK);
lblImg2.setBackground(SystemColor.inactiveCaption);
lblImg2.setBounds(241, 155, 150, 200);
contentPane.add(lblImg2);

// 标签，显示第三个学生相片
final JLabel lblImg3 = new JLabel("NO.3");
lblImg3.addMouseListener(new MouseAdapter() {

@Override
public void mouseClicked(MouseEvent arg2) {
if (arg2.getSource() == lblImg3) {
if ((lblImg3.getText().equals(lbGuessName.getText()))) {
JOptionPane.showMessageDialog(null, "YES！你猜对了！", "提示",
JOptionPane.PLAIN_MESSAGE);

} else {
JOptionPane.showMessageDialog(null, "NO！你猜错了！", "错误",
JOptionPane.ERROR_MESSAGE);

}
}

}
});
lblImg3.setBounds(434, 155, 150, 200);
contentPane.add(lblImg3);

// 再猜一次 按钮，点击则更新相应的三张图片 与 带猜测学生姓名
final JButton btnGuessAgain = new JButton("\u518D\u731C\u4E00\u6B21");

btnGuessAgain.addActionListener(new ActionListener() {
private Object[] data1;

public void actionPerformed(ActionEvent e) {
if (e.getSource() == btnGuessAgain) { // 如果是next按钮

Random random = new Random(System.currentTimeMillis());
// 循环三次

ImageIcon icon;
for (int i = 0; i < 3; i++) {
index = random.nextInt(NUM_IMG);
String strTmp = fileArray[index].toString();
String filename1 = fileArray[index].getName();
try {

icon = new ImageIcon(ImageIO.read(new File(strTmp)));

// 从图表中获取到图片
Image image = icon.getImage();
// 缩放图像
Image smallImage = image.getScaledInstance(150,
200, Image.SCALE_FAST);

// 把Image文件转化为ImageIcon
icon = new ImageIcon(smallImage);

if (index == NUM_IMG)
index = 0;

switch (i) {
case 0:
System.out.println(fileArray[index].getName());

lblImg1.setIcon(icon);
lblImg1.setText(filename1);

break;
case 1:
System.out.println(fileArray[index].getName());
lblImg2.setIcon(icon);
lblImg2.setText(filename1);

break;
case 2:
System.out.println(fileArray[index].getName());
lblImg3.setIcon(icon);
lblImg3.setText(filename1);

break;

}
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();

}

}

}

System.out.println(fileArray[index].getName());
String filename = fileArray[index].getName();

lbGuessName.setText(filename);
}
});
btnGuessAgain.setBounds(223, 400, 93, 23);
contentPane.add(btnGuessAgain);
}
}