http://xmlns.jcp.org/xml/ns/javaee/web-app_3_0.xsd"version="3.0"><welcome-file-list><welcome-file>/MyFirstServlet</welcome-file></welcome-file-list><servlet><servlet-name>MyFirstServlet</servlet-name><servlet-class>com.howtodoinjava.servlets.MyFirstServlet</servlet-class></servlet><serv...