package com.multiplication.table;

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

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

/**
 * Servlet implementation class MultiplicationTableServlet
 */
@WebServlet("/MultiplicationTableServlet")
public class MultiplicationTableServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;

    /**
     * Default constructor.
     */
    public MultiplicationTableServlet() {
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {


		int column = Integer.parseInt(request.getParameter("column"));
		int rows = Integer.parseInt(request.getParameter("row"));
		response.setContentType("text/html");
	    PrintWriter out = response.getWriter();
	    out.println("<table border=1 cellpadding=0 cellspacing=0>");
	    int col = column + 1;
	    int row = rows + 1;
		for (int x=0; x<row; x++){
			out.println("<tr>");
			for(int y=0; y<col;y++){
				if(x == 0 && y == 0){
					out.println("<td> X </td>");
				}
				else if(x == 0 && y != 0){
					out.println("<td>" + y + "</td>");
				}
				else if(x != 0 && y == 0){
					out.println("<td>" + x + "</td>");
				}
				else {
					out.println("<td>" + x*y + "</td>");
				}
			}
			out.println("</tr>");
		}
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doGet(request, response);
	}

}