yyy.java.bak

java 对话程序

import java.io.*;
import java.awt.*;
import java.awt.event.*;

public class yyy
{
public static void main(String args[])
{
	new open();
			
	}
}

class open extends Frame implements ActionListener
{
    
	Label prompt,prompt1;
	TextField input,output;
	Button btn,btn1;
  String line1,line;
  open()
	{
		super("The striving after better hopes");
		prompt=new Label("Welcome to");
		prompt1=new Label("请输入问题：");
		input=new TextField(20);
  	output=new TextField(20);
		btn=new Button("回答");
		btn1=new Button("关闭");
		setLayout(new FlowLayout());
		add(prompt);
		add(prompt1);
		add(input);
		add(output);
		add(btn);
		add(btn1);
		btn.addActionListener(this);
		btn1.addActionListener(this);
	
		setSize(200,200);
		show();		
	}
	public  void actionPerformed(ActionEvent e)
	  {
  if(e.getSource()==btn)
  try{ 
	 FileReader File1 =new FileReader("c:\\aaa\\R1.txt");
 	 BufferedReader buff=new BufferedReader(File1);
	 line1=input.getText();
	while((line=buff.readLine())!= null)
	{
    
    if(line.equals(line1))
     {   	
              	line = buff.readLine();
              	output.setText(line);
              	 }
	 }
	  File1.close();
    buff.close ();
	}catch (Exception sza){}
	else
 {
 	dispose();
 	System.exit(0);
}  
	try{  
	 FileReader File1 =new FileReader("c:\\connely\\R1.txt");
 	 BufferedReader buff=new BufferedReader(File1);
	line = buff.readLine();  
     if(line==null)
         output.setText("sorry I don`t know");      
         
         
         }catch (Exception asd){}
      
        
          }
        }