JAVA对写文件推荐用流的方式，下面是我写的一个简单计数器，当然在执行此程序前需要先建立count.txt文件，你可以仅执行此程序的后半部分，先创建文件：
$#@60;%@ page language = "java" %$#@62;
$#@60;%@ page contentType = "text/html; charSet=gb2312" %$#@62;
$#@60;%@ page import ="java.util.*" %$#@62;
$#@60;%@ page import ="java.lang.*" %$#@62;
$#@60;%@ page import ="javax.servlet.*" %$#@62;
$#@60;%@ page import ="javax.servlet.jsp.*" %$#@62;
$#@60;%@ page import ="javax.servlet.http.*" %$#@62;
$#@60;%@ page import="java.io.*" %$#@62;
$#@60;%
int count=0;
FileInputStream fi =new FileInputStream ("count.txt");
ObjectInputStream si= new ObjectInputStream (fi);
count =si.readInt();
count++;
out.print(count);
si.close();
FileOutputStream fo =new FileOutputStream ("count.txt");
ObjectOutputStream so= new ObjectOutputStream (fo);
so.writeInt(count);
so.close();
%$#@62;
你可以发现count.txt在winnt/system32目录下(WinNt4)这个计数器使用Int型变量，简单好用.希望大家对JAVA多多讨论。
