如何用ervlet做简单九九乘法

package web01;


import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class HelloServlet02 extends HttpServlet{
        public void service(HttpServletRequest request,HttpServletResponse response)
        throws ServletException,IOException{
       

       
                //读取请求参数值
       
                //String width=request.getParameter("width");       
                //String height=request.getParameter("height");       
                
                //处理
                // time="2015.10.13 16:27";
                //        double a=Double.parseDouble(width);
                //        double b=Double.parseDouble(height);
                //                double c =a/b/b;
        String greeting="";
                        int a=0;
                         
        for (int i = 0; i < 10; i++) {
                String d="";
                for (int j = 1; j <= i; j++) {
                        String c="("+i+"*"+j+"="+(i*j)+")   ";
                        d+=c;
                }
               
                greeting +="<span><p>"+d+"</p></span>";
        }
       
       
       
        //设置服务器返回的数据类型
        response.setContentType("text/html");
        PrintWriter out =response.getWriter();
        out.println(greeting);
                out.close();
       
       
        }
}