I need help with my java servlet homework(average)

jellyfish888 · #1 (**permalink**) 12-21-2007, 05:54 PM

My teacher asked me to do a java servlet code that will get the average of x numbers...I am planning to make a code that will put a dilimeter(such as comma or space) to ask the user to input their x numbers...unfortunately I don't know how to make this and how I am going to compute for the average...please help me...for now I only manage to make the very basic of the script...please help me...

My HTML code:

Code:

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<p>Average</p>
<form action="AverageNumber" method=get>
<p><input type=text name=number></p>
<input type=submit name=submit value=Submit>
</form>
</body>
</html>

This is my servlet which I don't know how to continue:

Code:

import java.io.*;
import java.util.Arrays;

import javax.servlet.*;
import javax.servlet.http.*;


public class AverageNumber extends HttpServlet
{
    public void doGet(HttpServletRequest request,
         HttpServletResponse response)
            throws IOException, ServletException
    {
      int number = Integer.parseInt(request.getParameter("number"));
      response.setContentType("text/html");
      PrintWriter out = response.getWriter();
      out.println("<html>");
      out.println("<head>");
      out.println("<title>Sorting Servlet</title>");
      out.println("</head>");
      out.println("<body>");
      out.println(answer);
      out.println("</body>");
      out.println("</html>");
      }

      public void doPost(HttpServletRequest request,
      HttpServletResponse response)
      throws IOException, ServletException
      {
      doGet(request, response);
      }
}

jellyfish888 · #2 (**permalink**) 12-22-2007, 06:24 AM

I've done some changes in my code...This time I was able to somehow organize my thought to compute for average...I used stringtokenizer to split the numbers...unfortunately I am experiencing some errors...please help me...please check my code...

Code:

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


public class AverageNumber extends HttpServlet
{
    public void doGet(HttpServletRequest request,
         HttpServletResponse response)
            throws IOException, ServletException
      {
      int number = Integer.parseInt(request.getParameter("number"));
      response.setContentType("text/html");
      PrintWriter out = response.getWriter();
      out.println("<html>");
      out.println("<head>");
      out.println("<title>Sorting Servlet</title>");
      out.println("</head>");
      out.println("<body>");
      out.println(answer);
      out.println("</body>");
      out.println("</html>");
      }

      public void doPost(HttpServletRequest request,
      HttpServletResponse response)
      throws IOException, ServletException
      {
      doGet(request, response);
      }

      public int process(Integer number){
      int count=0;
      int sum=0;

      StringTokenizer st=new StringTokenizer(number);
      while (st.hasMoreTokens()){
      System.out.println(st.nextToken());
      }

	for (int=0; i<number.length; i++){
	count=count+1;
	sum=average+number;	
	}
	int average=sum/count;
	System.out.println("Result: "+average);
	}
	}
}

james_kabi · #3 (**permalink**) 12-23-2007, 10:57 PM

Hey buddy,

I attached two zip files, one of them in AverageNumber.zip which is a web application (source included) in order to deploy it, first extract it and then copy the extracted folder to webapps directory of your tomcat,

the second one is a netbeans project (AverageNumber_nbproject.zip), if you download the netbeans 6.0 IDE. you can extract the zip file and open it with netbeans.

download the NetBeans 6.0 IDE from : Welcome to NetBeans
it'll be solve most of your programming problems.

I hope it would be helpful

Regards,

james