import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.io.*;
import java.applet.*;
public class c5_01_01 extends JApplet implements ActionListener
{
  public static void main(String[] args) 
  {
    c5_01_01 frame = new c5_01_01();
  }
   JButton bul;
   JTextArea ta1;
  public init() {
  //super("c5_01_01");
  Container c=getContentPane();
  c.setLayout(null);
  bul=new JButton("加载文本文件");
  bul.setSize(150,20);
  bul.setLocation(160,20);
  bul.addActionListener(this);
  c.add(bul);
  ta1=new JTextArea();
  ta1.setSize(420,280);
  ta1.setLocation(20,50);
  c.add(ta1);
  //setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  setSize(500,400);
  setVisible(true);
  }
  //事件处理方法
public void actionPerformed(ActionEvent e){
  char buffer[]=new char[2048];
  FileReader rd1;
  String str1="";
  try{
    rd1=new FileReader("c5_01_01.txt");
    int len1=rd1.read(buffer);
    rd1.close();
    str1=new String(buffer,0,len1);
    ta1.setText(str1);
  } catch(IOException e1){return;}
}
}