Add

package cs320.servlet; 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; @WebServlet("/Add") public class Add extends HttpServlet { private static final long serialVersionUID = 1L; public Add() { super(); } protected void doGet( HttpServletRequest request, HttpServletResponse response ) throws ServletException, IOException { String num1 = request.getParameter( "num1" ); String num2 = request.getParameter( "num2" ); if( num1 == null || num2 == null ) { response.sendRedirect( "AddForm.html" ); return; } int a = Integer.parseInt( num1 ); int b = Integer.parseInt( num2 ); response.setContentType( "text/html" ); PrintWriter out = response.getWriter(); out.println( "" ); out.println( "Add" ); out.println( "" ); out.println( "The sum of " + a + " and " + b + " is " + (a + b) ); out.println( "" ); } protected void doPost( HttpServletRequest request, HttpServletResponse response ) throws ServletException, IOException { doGet( request, response ); } }