Javal程序设计例7-6

import java.io.*;public class Bwriter {public static void main (String args[])   throws Exception{InputStreamReader i = new InputStreamReader(System.in);BufferedReader b = new BufferedReader(i);FileWriter f= new FileWriter("file1.txt");BufferedWriter w = new BufferedWriter(f);String s; while(true) { System.out.print("input a string :"); System.out.flush(); s=b.readLine(); if(s.length() ==0) break;             //如果用户直接回车，代表结束 w.write(s); w.newLine(); } w.close();}}