ratest.java

java的书上例子

import java.io.IOException; 
import java.io.IOException; 
import java.io.RandomAccessFile; 
class raTest
{ 
	public static void main(String args[]) throws IOException
	{ 
		RandomAccessFile myRAFile; 
		String s = "Information to Append\n mom!\n"; 
		myRAFile = new RandomAccessFile("phone.numbers","rw");//打开随即访问的文件
		myRAFile.seek(myRAFile.length());                    //文件指针定位到末尾
		myRAFile.writeBytes(s);                             //开始追加数据
		myRAFile.close();
	}
}