what is diff between generic servlets and httpservlets

Home Answers Viewqa Servlet-Interview-Questions what is diff between generic servlets and httpservlets

Nagendran

what is diff between generic servlets and httpservlets
1 Answer(s) a year ago
Posted in : Servlet Interview Questions

what is diff between generic servlets and httpservlets

View Answers

May 7, 2012 at 3:36 PM

Difference between GenericServlet and HTTPServlet:

1)GenericServlet belongs to javax.servlet package while HttpServlet belongs to javax.servlet.http package.

2)GenericServlet is an abstract class which extends Object and implements Servlet, ServletConfig and java.io.Serializable interfaces. HTTPServlet is an abstract class which extends GenericServlet and implements java.io.Serializable.

3)The direct subclass to GenericServlet is HttpServlet. To write a GenericServlet you need abstract service() to be overridden. A subclass of HttpServlet must override at least one method of doGet(), doPost(),doPut(), doDelete(), init(), destroy(), getServletInfo().

4)GenericServlet is a protocol-independent servlet while HTTPServlet is a protocol dependent servlet.

the servlets
what is diff between generic servlets and httpservlets what is diff between generic servlets and httpservlets Difference between GenericServlet and HTTPServlet: 1)GenericServlet belongs to javax.servlet package

Diff between ArrayList and Vector?
Diff between ArrayList and Vector? What's The Difference between ArrayList and Vector Classes and Can you give me a simple Program for set and List Interface

diff b/w applet and servlet
diff b/w applet and servlet what is the difference between applet and servlet? Difference between servlet and applet: 1)An applet... over the browser whearas servlets run over the server. 3)Servlet doesn't have

Diff between Struts1 and struts 2? - Struts
Diff between Struts1 and struts 2? What are the difference in between Struts 1 and Struts 2? Hi Gaurav There is a big difference... describes some differences between struts1 and struts2 Feature Struts 1 Struts 2

diff betn show n visible
diff betn show n visible what is difference between show() & visible method in java

Diff b\w C++ & Java
Diff b\w C++ & Java What is the difference between C++ & Java

servlets
servlets Hi what is pre initialized servlets, how can we achives? When servlet container is loaded, all the servlets defined...; in between the <servlet></servlet> tag

Difference between JSP and Servlets
Difference between JSP and Servlets What is the difference between JSP and Servlets ? JSP is used mainly for presentation only. A JSP can only be HttpServlet that means the only supported protocol in JSP is HTTP

servlets
what are the different ways we can maintain state between request what are the different ways we can maintain state between request Different ways of maintaining state?s between stateless requests: 1)URL rewriting

diff between spring and struts in java
diff between spring and struts in java diff between spring and struts in java

servlets
what is the difference between getsession true and getsession fales servlets what is the difference between getsession true and getsession fales The getSession(true) will check whether a session already exists

servlets
what is the difference between dopost and doget methods what is the difference between dopost and doget methods doGet is used when there is are requirement of sending data appended to a query string in the URL

jsp and servlets
jsp and servlets what is difference between jsp and servlet?? what should a person use to develop website ?? JSP is used for view in MVC.... Developing a website is generic question you may have to find out the usage

diff bw sructs,hipernet,spring - Framework
diff bw sructs,hipernet,spring what is the difference between structs,hipernet,spring which applications suitabe for structs,hipernet,spring Hi friend, http://www.roseindia.net/spring/ http://www.roseindia.net

Generic Types with Dynamic Decorators - Java Tutorials
subscribed from 55 countries Proxy vs. Decorator What is the difference between...Generic Types with Dynamic Decorators 2001-10-24 The Java Specialists' Newsletter [Issue 034] - Generic Types with Dynamic Decorators Author: Dr. Heinz

servlets
servlets what is the duties of response object in servlets

servlets
servlets How do you communicate between the servlets? We can communicate between servlets by using RequestDespatcher interface and servlet chaining

servlets
what are advantages of servlets what are advantages of servlets Please visit the following link: Advantages Of Servlets

servlets
what is the architecture of a servlets package what is the architecture of a servlets package The javax.servlet package provides interfaces and classes for writing servlets. The Servlet Interface The central

servlets
which are the differ ways you can communicat between servlets which are the differ ways you can communicat between servlets Different ways of communicating between servlets:- 1)Using RequestDispatcher object. 2

servlets
servlets why we require wrappers in servlets? what are its uses? Please explain These wrappers classes help you to modify request...://www.roseindia.net/servlets/response-filte.shtml

servlets
servlets why do we need web-inf directory in web application why do we need web-inf directory in web application? means what's the benefits of doing so

Sessions in servlets
Sessions in servlets What is the use of sessions in servlets? The servlet HttpSession interface is used to simulate the concept... with no necessary connection between one request and the next

servlets
what are sessions in servlets what are sessions in servlets A Session refers to all the request that a single client makes to a server...: http://roseindia.net/jsp/jspsession/ http://www.roseindia.net/servlets

servlets
what are cookies in servlets what are cookies Cookies... regarding the user usage and habits. Servlets sends cookies to the browser client...://www.roseindia.net/jsp/jspcookies.shtml http://www.roseindia.net/servlets/use

servlets
what are filters in java servlets what are filters in java Filters are powerful tools in servlet environment. Filters add certain functionality to the servlets apart from processing request and response paradigm

Diff b/w servlet n jsp - Java Interview Questions
Diff b/w servlet n jsp hii i want to know the difference between... with the html. Servlets are compiled pure Java class files (not mixed with HTML...://www.roseindia.net/servlets/ Thanks

servlets
servlets what are different authentication options available in servlets There are four ways of authentication:- HTTP basic authentication HTTP digest authentication HTTPS client authentication Form-based

Servlets
Servlets What is the filter code to authenticate the user

servlets
what are the two important api in for servlet what are the two important api in for servlet Two important packages are required to build servlet "javax.servlet" and javax.servlet.http

servlets
why is http protocol called as a stateless protocol why is http protocol called as a stateless protocol A protocol is stateless if it can remember difference between one client request and the other. HTTP

servlets
servlets q)What will happen if you donâ??t write the implementation in service () of our Servlet? Which method () it will call? q2)How many times init() execute and what happen if browser is close and server shutdown ? JSP

Diff between Runnable Interface and Thread class while using threads
Diff between Runnable Interface and Thread class while using threads Diff between Runnable Interface and Thread class while using threads Hi Friend, Difference: 1)If you want to extend the Thread class

servlets
what is functionality of requestdispatcher object servlets what is functionality of requestdispatcher object The RequestDispatcher allows the dynamic inclusion of web components either by including in the current

servlets
what is url rewriting what is url rewriting It is used to maintain the session. Whenever the browser sends a request then it is always interpreted as a new request because http protocol is a stateless protocol

servlets
servlets what is ResultSet? ResultSet is a java object that is used for database connectivity to hold the data returned by a select query. When we run a select query it returns us the data in a table format with each

the servlets
what is the use of servlet context what is the use of servlet context ServletContext is a interface which helps us to communicate with the servlet container. There is only one ServletContext for the entire web

servlets
servlets Even though HttpServlet doesn't contain any abstract method why it is declared as abstract class? what benifits we can get by declaring like this?(i.e, with out containing the abstract methods, declaring a class

SERVLETS
SERVLETS I follow the same procedure what you send by the links.but i got the same errors coding is: import java.io.*; import java.sql.*; import javax.servlet.*; import javax.servlet.http.*; public class

what is the difference between jdk 1.4 and 1.5 and 1.6
what is the difference between jdk 1.4 and 1.5 and 1.6 what is the difference between jdk 1.4 and 1.5 and 1.6 Java 1.4 Features...: automatic conversions between primitive types (such as int) and primitive wrapper

Java-Generic Interface
Java-Generic Interface Hi Friends, The current connector for accepting request to our existing system is written in C language,we had build a ".so...). Could some one guide me what are the possible way I can go about it,How can I

What is the difference between the >> and >>> operators?
What is the difference between the >> and >>> operators? hi, What is the difference between the >> and >>> operators? Thanks

servlets - Java Beginners
servlets I am doing small project in java on servlets. I want to generate reports on webpage ,how is it possible and what is the difference between dynamic pages & reports ? tell me very urgent pls,pls

Servlets - Java Interview Questions
Servlets What is the difference between servlet context and servlet... and are available to all the servlets within that application. It represents your web... are specified for a particular servlet and are unknown to other servlets

Generic toString - Java Tutorials
Generic toString 2003-10-08 The Java Specialists' Newsletter [Issue 079] - Generic toString() Author: Dr. Heinz M. Kabutz If you are reading.... Generic toString() I would like to thank Ravi Nukala for the idea

servlets - Servlet Interview Questions
is,what is the difference between servletcex and servletconfig(full flezed... servlet and are unknown to other servlets. The ServletContext parameters... and are available to all the servlets within that application ServletContext

what is the difference between extends and implements
what is the difference between extends and implements difference between extends and implements

What is the difference between PHP4 and PHP5?
What is the difference between PHP4 and PHP5? What is the difference between PHP4 and PHP5

Ask Questions?

If you are facing any programming issue, such as compilation errors or not able to find the code you are looking for.

Ask your questions, our development team will try to give answers to your questions.

Tutorial Topics