import java.io.*;

public class UseRandom

{

public static void main(String[] args)

{

try

{

// 构建随机访问文件对象

RandomAccessFile f = new RandomAccessFile("Hello.tx", "rw");

// 得到文件指针和长度　

long flag = 0;

long len=f.length();

// 字符处理后输出

while (flag < len)

{

String s = f.readLine();

System.out.println(parseChinese(s));

flag = f.getFilePointer();

}

// 末尾写入字符

f.writeChar('O');

f.writeChar('K');

}

catch (IOException e)

{

System.out.println(e.getMessage());

}

}

// 解决中文转换问题

public static String parseChinese(String inStr)

{

String s = null;

byte temp[];

if (inStr == null)

{

return new String("");

}

try

{

temp = inStr.getBytes("iso-8859-1");

s = new String(temp);

}

catch (UnsupportedEncodingException e)

{

System.out.println(e.toString());

}

return s;

}

}