Write a JAVA program using servlet to count the no of times a servlet has been invoked.

import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;


    public class slip24 extends implements
    {

    static int numreq=0;
    proctected void doGet(ServletRequest reg,ServletResponse res)

    throws ServletException,IOException
    {
    res.setContentType("text/html");
    PrintWriter out=res.getWriter();
    out.println("Servlet invoke :");
    numreq++;
    out.println("numreq");
    out.close();

    }
}