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829天前import java.awt.*; |
import java.awt.event.*; |
import javax.swing.*; |
public class Chp13_2 extends JFrame{ |
private JButton chongwan; |
private JTextField field; |
private JLabel label1,label2; |
private Container container; |
private int shuzi = (int)(Math.random()*1000+1); |
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Chp13_2 (){ |
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super("猜数游戏"); |
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container = getContentPane(); |
container.setLayout(new FlowLayout()); |
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label1 = new JLabel("给你一个1~1000的随机数请你猜，请输入你猜的数："); |
container.add(label1); |
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field = new JTextField(20); |
field.addKeyListener(new KeyListener(){ |
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public void keyPressed(KeyEvent arg0) { } |
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public void keyReleased(KeyEvent arg0) { |
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int shuru = Integer.parseInt(field.getText()); |
if(shuru < shuzi ){ |
container.setBackground(Color.BLUE); |
label2.setText("你猜小了！"); |
}else if(shuru > shuzi){ |
container.setBackground(Color.RED); |
label2.setText("你猜大了！"); |
}else if(shuru == shuzi){ |
container.setBackground(Color.WHITE); |
label2.setText("你猜对了！"); |
field.setEditable(false); |
} |
} |
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public void keyTyped(KeyEvent arg0){ } |
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}); |
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container.add(field); |
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label2 = new JLabel(" "); |
container.add(label2); |
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chongwan = new JButton("重玩"); |
chongwan.addActionListener(new ActionListener(){ |
public void actionPerformed(ActionEvent arg0) { |
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shuzi = (int)(Math.random()*1000+1); |
field.setEditable(true); |
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} |
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}); |
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container.add(chongwan); |
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setSize(500,400); |
setVisible(true); |
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} |
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public static void main(String[] args) { |
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Chp13_2 application = new Chp13_2(); |
application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); |
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} |
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} |
