package fileReadAndWrite;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.io.RandomAccessFile;

/**

 * 测试文件读写

 * @author laobiao

 *

 */

public class bigFileRW {

    public static void main(String[] args) throws Exception {

        RandomAccessFile ra = new RandomAccessFile("test.txt", "rw");

         ra.seek(0);

         ra.write("a bcd你好啊的撒法".getBytes());

         ra.seek(0);

         System.out.println(new String(ra.readLine().getBytes("ISO-8859-1"),"utf-8"));//需要重新转码才能正常显示

         ra.close();

    }

}