When is the servlet instance created in the life cycle of servlet? What is the importance of configuring a servlet?
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Explain the concept of ssi ?
What is the use of httpservletrequestwrapper and httpservletresponsewrapper?
What are advantages of servlets over cgi?
what is the difference between?when we write the code in following manner? class One extends httpservlet { } and class One extends genericservlet { }
Why doesn’t a servlet include main()?
Why filter is used in servlet?
Define declaration.
Hi............ When i am started the tomcat server it started. but it not load the jar files wht we deploving file.suppose we load the wapp folder in webapps. At running time it show the below error in tomcat server INFO: validateJarFile(C:\Program Files\Apache Software Foundation\Tomcat 5.0\web apps\wapp\WEB-INF\lib\servlet-api.jar) - jar not loaded. See Servlet Spec 2.3, s ection 9.7.2. Offending class: javax/servlet/Servlet.class How to slove this problem in my system. plz give answer for this problem.
why are extending GenericServlet and why are extending HttpServlet explain?
What is the difference between CGI and Servlet?
Write a servlet to upload file on server.
Why HttpServlet class is declared abstract?
Core Java 
