C.R.Venkatesh

• May 15th, 2006

Hi, Clearly, it depends on the level of details one needs to capture, let's say XYZ123.com wants to place a promotional ad on a frequently visited page.For simplicity, let's confine to one particular ...

C.R.Venkatesh

• May 15th, 2006

Hi,Clearly, it depends on the level of details one needs to capture, let's say XYZ123.com wants to place a promotional ad on a frequently visited page. For simplicity, let's confine to one particular ...

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soorma

 Profile Answers by soorma Questions by soorma

• Apr 22nd, 2006

String Buffer is peer class of String which provide much of the functionality of strings.  "String represent fixed length immutable character sequences" Where as "String Buffer Represent grow abl...

nagan

• Apr 6th, 2006

StringBuffer is a class it comes with a default buffer all string manipulation are done in this buffer only.StringBuffer class is introduced by designers because String class is a Immutable.StringTokenizer class is used to seperate strings into tokens as per delimeters.

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Amit Saini

• Dec 12th, 2006

we can use the java script to call 15 different different servlet,each link call a function on the onclick event & this function the call the servlet through using web.xml each link call that type of...

Veeren76

 Profile Answers by Veeren76 Questions by Veeren76

• Aug 17th, 2006

I'd rather keep matters simple.Make different actions for each of the links and not use method-name parameter, it has its own problems. like action classes become huge and code gets intermingled.If yo...

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sunil

• Aug 10th, 2006

If u used a constuctor then no probs it's working fine but u cant used servletconfig and u cant passed argument constructor b'coz only first time yr constructor has called and for other request direct...

Ramu Kondapalli

• Jul 19th, 2006

Servlet life cycle is mannaged by the servlet container not the JVM.According to servlet specification the servlet container calls init() method of servlet, not the servlet constractors. At this point...

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sudhakarchowdary

 Profile Answers by sudhakarchowdary Questions by sudhakarchowdary

• Jan 12th, 2007

when the servlets has to use any  java object that is specific to the client for processing muiltiple requests  then we must store the java object in session object.session objects are ...

sureshkumar

• Nov 8th, 2006

hiSession is a unique object created by the server to the client.Session can be identified by using a session id.When the data is specific to a client at that time we need to store the data in session...

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krishna Ballabh

 Profile Answers by krishna Ballabh Questions by krishna Ballabh

• Mar 22nd, 2007

Apache tomcat testing  version can handle only 50 request at a time.

Ganesh

• Nov 27th, 2006

50 hits it can handle at a time

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amit_9b

 Profile Answers by amit_9b Questions by amit_9b

• May 2nd, 2009

Using this method is pretty straight-forward. BUt there is a simple catch: No data should be committed to the servlet output stream before the redirection occurs.In case data has been committed and th...

akantilal

 Profile Answers by akantilal Questions by akantilal

• Jun 12th, 2007

You can very much use the same response.sendRedirect method to redirect to a resource on another web server. You can provide the absolute URL along with the protocol name like response.sendRedirect(http://www.google.com);

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Praveen.kb

 Profile Answers by Praveen.kb Questions by Praveen.kb

• Sep 4th, 2009

Request Dispatcher - Dispatch the request to some other JSP or Servlet, user will not aware of this and finally response will go from where the request is dispatched.Request Redirect - Redir...

prasad_posina

 Profile Answers by prasad_posina Questions by prasad_posina

• Sep 21st, 2007

Using the redirect method ,we can forward the request to servlet that is either in the same servlet container or in other container .When we are using request dispatch method ,we can forward the request only to a servlet that is in the current container.

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Class java.lang.Object

fcasttro

 Profile Answers by fcasttro Questions by fcasttro

• Nov 21st, 2007

                    javax.servlet.servlet          &nbs...

rajesh

• Sep 26th, 2007

                  javax.servlet.servlet     ->interface      &...

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1)What is web.xml?2)what is the filter?3)How to we create a new JSTL class?4)When we are developing the project which collections mostly used?5)Difference between reqeust.getAttribute,and request.getParameter?

rizwan.amd

 Profile Answers by rizwan.amd Questions by rizwan.amd

• Sep 1st, 2010

1) What is web.xml? As this is a deployment descriptor, this is mandatory for an web application to deploy in web/application server. It contains servlets name, url pattern, load on startup, if ...

fcasttro

 Profile Answers by fcasttro Questions by fcasttro

• Nov 21st, 2007

1)What is web.xml?web.xml is nothing but a deployment descriptor. It describes a web applicants deployment settings.2)what is the filter?It is an Pluggable web componenet device it allow us to impleme...

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ServeltRequest: which encapsulates the communication from the client to the server.ServletResponse: which encapsulates the communication from the servlet back to the client.ServletRequest and ServletResponse are interfaces defined by the javax.servlet package.

rameshvdnv

 Profile Answers by rameshvdnv Questions by rameshvdnv

• Apr 25th, 2007

when a request is sent from the browser to a servlet, the servlet object will be created by the webcontainer if we don't provide load-on-startup element.suppose if we provide load-on-startup eleme...

Gunna

• Aug 10th, 2006

The Servlet then receives "ServletResponse" and "ServletRequest" objects.

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A servlet can handle multiple requests concurrently, and can synchronize requests. This allows servlets to support systems such as on-line conferencing. Servlets can forward requests to other servers and servlets. Thus servlets can be used to balance load among several servers that mirror the same content, and to partition a single logical service over several servers, according to task.

Prajakta Nimbalkar

• Feb 19th, 2018

Extensions to Java-enabled servers. Their most common use is to extend Web servers, providing a very secure, portable, and easy-to-use replacement for CGI. A servlet is a dynamically loaded module tha...

Mitchel K

• Jun 27th, 2005

Practical Applications for Java Servlets    This article is compiled by the IWD Team      Source: Developing Java Servlets, James Goodwill, samspublishing.com   ...

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Servlets provide a way to generate dynamic documents that is both easier to write and faster to run. It is efficient, convenient, powerful, portable, secure and inexpensive. Servlets also address the problem of doing server-side programming with platform-specific APIs. They are developed with Java Servlet API, a standard Java extension.

visalakshi

• Oct 27th, 2006

Java servlets are more efficient, easier to use, more powerful, more portable, and cheaper than traditional CGI and than many alternative CGI-like technologies. (More importantly, servlet developers g...

Gokulakrishnan

• Sep 28th, 2005

servlet is used to handle request and response .Multiple concurrent request accessing the service method of the same servlet instance,for eg:when a client give a request one instance is created a...

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Answered by Scott on 2005-05-12 10:39:32: A servlet that implements SingleThreadModel means that for every request, a single servlet instance is created. This is not a very scalable solution as most web servers handle multitudes of requests. A multi-threaded servlet means that one servlet is capable of handling many requests which is the way most servlets should be implemented.  A single...

chandra_raya

• Jul 12th, 2006

Hi,As the name says Singlethread means only one thread, can access the service method of the servlet, to reduce the overhead the servlet container creates pool of servlet instances to handle n number of request that is depend on the servler configurationthankschandra

Scott

• May 12th, 2005

A servlet that implements SingleThreadModel means that for every request, a single servlet instance is created. This is not a very scalable solution as most web servers handle multitudes of requests. ...

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destroy() is a servlet life-cycle method called by servlet container to kill the instance of the servlet. The answer to your question is "Yes". You can call destroy() from within the service(). It will do whatever logic you have in destroy() (cleanup, remove attributes, etc.) but it won't "unload" the servlet instance itself. That can only be done by the container

rameshvdnv

 Profile Answers by rameshvdnv Questions by rameshvdnv

• Apr 25th, 2007

Yes,we can call destroy method,but it is not recommended to call this method from our code since init(),service(),destroy()'s r servlet lifecycle methods.And in destroy()there will be aconfig vari...

hariprasad

• Apr 22nd, 2006

Destroy

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Pradeepta

• Jun 5th, 2007

ServletConfig and ServletContext are used to pass technical information from outside to the servlet. e.g. JDBC driver classes. ServletConfig is limited to the Servlet only and the ServletContext is sp...

Senthilrajan

• Jun 17th, 2005

An interface that describes the configuration parameters for a servlet. This is passed to the servlet when the web server calls its init() method. Note that the servlet should save the reference to th...

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ANS: Two ways:1. Forward or redirect from one Servlet to another.2. Load the Servlet from ServletContext and access methods.

Rakesh Parashar

• Jan 19th, 2006

Through RequestDispatcher by obtaining object of type RequestDispatcher by getRequestDispatcher() method of ServletContext but before getting object ofReqestDispatcher we have to first obtain object o...

Chidambara Gupta. Cheedella

• Sep 21st, 2005

Servlet Collaboration or Communication can be achieved either by using Request Dispatcher's Forward or Include methods (available with request object) or Send Redirect method(available with respo...

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Isis

• Apr 15th, 2006

Servlet is controller and JSP is of more a view so when the project needs more on view oart we can add JSP other wise both can do the sane thing but in larger projects the servlet code becomes cluttred

manikant

• Oct 31st, 2005

Generally for small projects we use JSP model-1 where we use JSP for view and beans for business logic. For large projects while implementing JSP model-2 (MVC architecture) we use JSP+Servlet+Java Beans.

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Maneesh

• Apr 19th, 2006

Vector is a legacy class and its synchronized, which means whatever operations performed on Vector is synchronized...but more accurate any1 plz???????

Vinod

• Sep 27th, 2005

Vectot is a legacy class and its synchronized, which means whatever operations performed on Vector is synchronized

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diptendu gorai

• Dec 22nd, 2005

Very good side

Saffy

• Oct 16th, 2005

init() method acts like a contructor, it is initilized when servlet is loaded.service() method is first executed when servlets service is started.Note: service() method is override implicitly for HTTP...

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