感言：剛開始編的時候沒有把number和number1 設為全域性變數，導致結果不正確。還有本來用的是AWT類，現在改成了Swing類，這個類功能比較強大，元件和視覺化介面都很好。但是不知道圖片怎麼顯示不出來了，在ecplise上應該可以顯示出來的。

import java.util.*;

import java.awt.event.*;

import java.awt.*;

import javax.swing.*;

public class Window extends JFrame implements ActionListener{
 
 int number,number1,m; JTextField text1,text2,text3;
 
 JButton buttonGetNumber ;
 
 JButton buttonEnter ; 
 
 JLabel tishi,jia,deng;
 
 Window()
 {
  
  setLayout(new FlowLayout());
  
  text1 = new JTextField(10);
  
  text2 = new JTextField(10);
  
  text3 = new JTextField(10);
  
 
  buttonGetNumber = new JButton("獲取題目");
  
  buttonEnter = new JButton("確認答案");
  
  tishi = new JLabel("請輸入你的猜測",JLabel.CENTER);
  
 
  jia = new JLabel("+");
  
  deng = new JLabel("=");
  
  add(buttonGetNumber);
  add(text1);
  
  add(jia);
 
  add(text2);
  
  add(deng);
  
  add(text3);
  
  add(tishi);
  
  add(buttonEnter);
  
  add(tishi);
  
  text1.addActionListener(this);
  
  text2.addActionListener(this);
  
  text3.addActionListener(this);
  
  buttonGetNumber.addActionListener(this);
  
  buttonEnter.addActionListener(this);
  
  setBounds(200,200,550,550);
  
  setVisible(true);
  
  validate();
  
  
 }
 public void actionPerformed( ActionEvent e)
 {
  
  if(e.getSource()==buttonGetNumber)
 {
  
   number = (int)(Math.random()*100)+1;
   
   
   number1 = (int)(Math.random()*100)+1;
   
     m = number+number1;
   
   text1.setText("得到一個數:"+number);
   
   text2.setText("得到一個數:"+number1);
 }
 
  if(e.getSource()==buttonEnter)
 {
  
  
   int guess=0;
   
     
  try{
   guess = Integer.parseInt(text3.getText());
    
   
   if(guess==m)
   {
     tishi.setText("猜對了");
    }
     
    else if(guess>m)
    {
     tishi.setText("猜大了");
    }
     
    else if(guess<m)
    {
     tishi.setText("猜小了");
    }
 }
     catch(NumberFormatException event)
     {
      tishi.setText("請輸入數字字元");
     }
  }
 }
 }
 
下面是Test類 
 

public class Test { 

 public static void main(String[] args) {
   Window win = new Window();
 }}