怎么就读不出来呢？？高手请进来指导一下吧！~(在线等待）

Question

这段代码如果我将文件读到Cmd，一切正常，但是要读到t2里面它就死都不出来~~怎么回事呀？？
代码如下：
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import java.io.*;class Wordf extends Frame implements ActionListener
{   
    //Label l1,l2,l3;
    TextField t1;
    TextArea t2;
    Button b1;
    Checkbox c0,c1,c2,c3;
    CheckboxGroup age;
    String  s;
    File f; 
    FileReader  fr;
    BufferedReader in;    Wordf()  //构造函数
      {
        super("单词填空的小程序");
        setBackground(Color.cyan);
        setSize(600,400);
        setVisible(true);
        setLayout(null);
       // l1=new Label("您的得分是");add(l1);l1.setBounds(80,40,80,20);
        t1=new TextField();
        add(t1);
        t1.setBounds(160,40,100,20);
        t1.setBackground(Color.pink);
        
       // l2=new Label("句子填空");
        //add(l2);
       // l2.setBounds(20,100,80,20);         t2=new TextArea(100,100);
        add(t2);
        t2.setBounds(20,120,500,25);
        t2.setBackground(Color.pink);
  
        
       //l3=new Label("请选择答案");
       //  add(l3);
       // l3.setBounds(20,180,80,20);
       
        age=new CheckboxGroup();
        c0=new Checkbox("nihao",false,age);
        add(c0);
        c0.setBounds(20,200,80,20);        c1=new Checkbox("nihao",false,age);
        add(c1);
        c1.setBounds(20,220,80,20);        c2=new Checkbox("nihao",false,age);
        add(c2);
        c2.setBounds(20,240,80,20);        c3=new Checkbox("nihao",false,age);
        add(c3);
        c3.setBounds(20,260,80,20);
         
        b1=new Button("重新开始练习");
        add(b1);
        b1.addActionListener(this);
        b1.setBounds(400,300,100,30);
        
           try
             {
                f=new File("E:\\","123.txt");  //建立文件
                fr=new FileReader(f);  //构造FileReader对象
                in=new BufferedReader(fr);  //将FileReader接到BufferedReader流上去，用来从文件读取行
              }
            catch(IOException e)
              {
              }      }      public void actionPerformed(ActionEvent e) //按键响应事件
         {   
             if(e.getSource()==b1)
                 {   
                     t1.setText("nihao");
                     Reading(); 
                  }
          }       public void Reading()  //读文件的函数
        {
             try
             {
                s=in.readLine();
                t2.setText(s);
              }
             catch(IOException e)
              {
                t1.setText("文件操作时出错:"+e);
              }
         }}
public class dc extends Applet
{
   public void init()
    {
       Wordf f=new Wordf();
    }
}