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用随机数写的猜数字游戏(键盘可以控制)


  1 
  2 import java.awt.*;
  3 import javax.swing.*;
  4 import java.awt.event.*;
  5 import java.applet.Applet;
  6 import java.awt.Container;
  7 import java.util.*;
  8 
  9 //int a =(int)(Math.random()*(15-5))+5; 
 10 
 11 public class homework  extends Canvas 
 12 {
 13 
 14     private static JFrame window = new JFrame("homework");
 15     private static TextField tf = new TextField(20);
 16     static int a = (int)(Math.random()*(100-0))+0;
 17     private static JLabel jlabel = new JLabel("猜的消息");
 18     public static void main(String[] args) 
 19     {
 20     try
 21     {
 22         Button bn1 = new Button("猜一猜");
 23         Button bn2 = new Button("重新来一局");
 24         Container container = window.getContentPane();
 25         Toolkit thekit = window.getToolkit();
 26         bn2.addActionListener(new ActionListener()
 27         {
 28             public void actionPerformed(ActionEvent e)
 29             {
 30                 reseta();
 31                 jlabel.setText("猜的消息");
 32             }
 33         }
 34         );
 35         bn1.addActionListener(new ActionListener()
 36         {
 37             public void actionPerformed(ActionEvent e)
 38             {
 39             
 40                 int b = Integer.parseInt(tf.getText());
 41                 if(a > b)
 42                 {
 43                     jlabel.setText("你猜的数小了");
 44                 }
 45                 else if(a < b )
 46                 {
 47                     jlabel.setText("你猜的数大了");
 48                 }
 49                 else
 50                     {
 51                     jlabel.setText("恭喜！！你猜对了，请重新来");        
 52                     reseta();
 53                     }
 54             }
 55         
 56         }
 57         );        
 58         tf.addKeyListener(new KeyAdapter()
 59         {
 60              public void keyReleased(KeyEvent e)    //按键被按下的时候
 61             {
 62                  if(e.getKeyCode()==KeyEvent.VK_ENTER)
 63                 {
 64                     int b = Integer.parseInt(tf.getText());
 65                     if(a > b)
 66                     {
 67                         jlabel.setText("你猜的数小了");
 68                     }
 69                     else if(a < b )
 70                     {
 71                         jlabel.setText("你猜的数大了");
 72                     }
 73                     else
 74                         {
 75                         jlabel.setText("恭喜！！你猜对了，请重新来");        
 76                         reseta();
 77                         }
 78                 }                
 79             }
 80             
 81         }
 82         );            
 83         Dimension wndsize = thekit.getScreenSize();
 84         window.setBounds(wndsize.width/4,wndsize.height/4,wndsize.width/2,wndsize.height/2);
 85         container.setLayout(new FlowLayout());
 86         container.add(tf);
 87         container.add(bn1);
 88         container.add(bn2);
 89         container.add(jlabel);
 90         window.setVisible(true);        
 91     }
 92     catch(Exception e)
 93     {        
 94     }
 95 }
 96     public static void reseta()
 97     {
 98         a = (int)(Math.random()*(100-0))+0;
 99     }
100 

posted on 2008-10-26 03:05 wsy6634 阅读(983) 评论(0)  编辑  收藏


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