Java IO学习基础之读写文本文件

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Java的IO操作都是基于流进行操作的，为了提高读写效率一般需要进行缓冲。

简单的示例程序如下：

/**

* 读出1.txt中的内容，写入2.txt中

*

*/

import java.io.*;

public class ReadWriteFile{

public static void main(String[] args){

try{

File read = new File("c:/1.txt");

File write = new File("c:/2.txt");

BufferedReader br = new BufferedReader(

new FileReader(read));

BufferedWriter bw = new BufferedWriter(

new FileWriter(write));

String temp = null;

temp = br.readLine();

while(temp != null){

//写文件

bw.write(temp "

"); //只适用Windows系统

//继续读文件

temp = br.readLine();

}

bw.close();

br.close();

}catch(FileNotFoundException e){ //文件未找到

System.out.println (e);

}catch(IOException e){

System.out.println (e);

}

}

}