④TransBufferIO

package io;

import java.io.BufferedReader;
import java.io.FileWriter;
import java.io.InputStreamReader;

public class TransBufferIO {
	public static void main(String[] args) {
		try {
			//InputStream -> Reader
			InputStreamReader isr = new InputStreamReader(System.in);
			//BufferedReader 重要的方法readline(),而reader只有read(str)
			BufferedReader bf =new BufferedReader(isr);
			//准备写入文件
			FileWriter fw = new FileWriter("F://eclipseWorkStation//temp//to//沙耶之歌.txt",true);
			String temp = null;
			//do while循环亦可
			temp = bf.readLine();
			while(temp!=null){
				if(temp.equals("exit"))break;
				fw.write(temp);
				temp = bf.readLine();
			}
			fw.flush();
			fw.close();
			bf.close();
			
		} catch (Exception e) {
			// TODO: handle exception
		}
	}
}