IO编程__缓冲字符流__输入、输出

package www.tainiu.wenjian;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

public class af__FileHuanZiFuLiu__V1 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		BufferedReader br= null;
		BufferedWriter bw= null;
		
		try {
			FileReader fr= new FileReader("d:\\Test.txt");
			br= new BufferedReader(fr);
			
			FileWriter fw= new FileWriter("e:\\Test__1.txt");
			bw= new BufferedWriter(fw);
			
			String s= "";
			while((s=br.readLine()) != null) {
				//System.out.println(s);
				bw.write(s + "\r\n");
			}
			
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} finally {
			try {br.close();bw.close();} catch (IOException e) {e.printStackTrace();}
		}
		

	}

}

package www.tainiu.wenjian;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

public class af__FileHuanZiFuLiu__V2 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		BufferedReader br= null;
		BufferedWriter bw= null;
		
		try {
			//FileReader fr= new FileReader("d:\\Test.txt");
			br= new BufferedReader(new FileReader("d:\\Test.txt"));
			
			//FileWriter fw= new FileWriter("e:\\Test__1.txt");
			bw= new BufferedWriter(new FileWriter("e:\\Test__2.txt"));
			
			String s= "";
			while((s=br.readLine()) != null) {
				//System.out.println(s);
				bw.write(s + "\r\n");
			}
			
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} finally {
			try {br.close();bw.close();} catch (IOException e) {e.printStackTrace();}
		}
		

	}

}