猜数字小游戏（Guess a number between 1 and 1000）

//Guess a number between 1 and 1000
//Java how to program, 5/e, Exercise 6.34-35
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class NumberGuessGame extends JApplet implements ActionListener {
 int number,random,counter=0;
 JLabel guessLabel;
 JTextField guessField;

 
 public void init()
{
     
     Container  container=getContentPane();
     container.setLayout(new FlowLayout());
     
     guessLabel= new JLabel("Guess a number between 1 and 1000:");
     container.add(guessLabel);
     
     guessField=new JTextField(10);
     container.add(guessField);
     
     guessField.addActionListener(this);
    
     random=(int)(1+1000*Math.random());
     
    

 }
 
 public void actionPerformed (ActionEvent event)
{
     number=Integer.parseInt(guessField.getText());
     while(number!=random)
     {
         number=Integer.parseInt(guessField.getText());
         if(number>random)
             {
             showStatus("Too high. Try again.");
             guessField.setText("");
             counter++;
             }
         else
             {
             showStatus("Too low. Try again");
             guessField.setText("");
             counter++;
             }
     }
     showStatus("Congratulations! You guessed the number!");
     
     System.out.println("You have tried "+counter+"times in total!");
     if(counter<=10)
         System.out.println("Either you know the secret or you got lucky!");
     if(counter==10)
         System.out.println("Aha! You know the secret!"); 
     else if(counter>10)     
         System.out.println("You should be able to do better!"); 
    

 }
 }