What is the Difference Between Web Container and Web Server?(Asked in Polaris Interview , held on April 11, Chennai)

smartguy

 Profile Answers by smartguy Questions by smartguy

• Apr 15th, 2008

The Webserver: Just Receive the request from the client and forward to Webcontainer, and do the Response vice versa.Web Container: Creates HTTP Request and Response for the Servlet, calls the appropri...

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Write a java servlet which reads two parameters from the web page,say,value 1 and value 2,which are of type integers,and finds the sum of the two values and return back the result as a web page

kamal Mehta

• Dec 11th, 2011

String value1=request.getParameter("value 1"); String value2=request.getParameter("value 2"); Int sum; Int val1=Integer.parseInt("value1"); Int val2=Integer.parseInt("value2"); sum=val1+val2; resp...

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by default applets are trusted or untrusted?
is it possible to connect with database using applet program using type1 driver?

Murali100

 Profile Answers by Murali100 Questions by Murali100

• Oct 7th, 2012

Applets are trusted.But we can use Type 3 Driver & Type 4 driver to connect the database

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Although the SingleThreadModel technique is easy to use, and works well for low volume sites, it does not scale well. If you anticipate your users to increase in the future, you may be better off implementing explicit synchronization for your shared data. The key however, is to effectively minimize the amount of code that is synchronzied so that you take maximum advantage of multithreading.Also, note...

vamshidhar Ghanpur

• Aug 27th, 2005

I can answer this Good Question based on 2 requirements 1)Less volume sites 2)High volume sites. 1)in case of less volume sites there will be less no of users,it means no of request are very less...

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Information such as the names of the parameters passed in by the client, the protocol (scheme) being used by the client, and the names of the remote host that made the request and the server that received it. The input stream, ServletInputStream.Servlets use the input stream to get data from clients that use application protocols such as the HTTP POST and PUT methods.

sivakumar

• May 10th, 2005

Really, a must-know questions for a j2ee programmer

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satyasudheer

 Profile Answers by satyasudheer Questions by satyasudheer

• Sep 19th, 2005

When you increase the buffer size in jsp using the buffer tag then it means that you are increasing the data holding capacity of the buffer. When you access the jsp(incresed buffer size) then the user...

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Chidambara Gupta. Cheedella

• Sep 21st, 2005

The RequestDispatcher.include(req, resp) is used to add a jsp to the servlet.

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satish

• Jan 12th, 2006

It will be clear if know the peer technology. If the technology is CGI , it create a process for each client request but servlet technology just creates a thread.

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Kiran Kumar

• Apr 7th, 2006

If u ActionMapping.findForward("Failure") in Action Class. The webcontainer reads the information in sruts-config.xml and get the error page file.In struts-config.xml <forward name="Failure" path="error.jsp"> 

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ravikiran_kavaley

 Profile Answers by ravikiran_kavaley Questions by ravikiran_kavaley

• Dec 23rd, 2005

The example code may help you out.Vector v = getDataVector();//getDataVector() may be some method where you will put all your objects into vector.int size = v.size();for(int i = 0 ; i<size ; i++){&...

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Lakshmi

• Dec 30th, 2005

Bean components are the data transfer objects betwen Servletsand JSPs which are goign to travel and hence they have to be serialized. Connection object is just to make a physical connection to the database specified and no need to serialize hence made transient.

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devs

• Feb 10th, 2006

session's invalidate method is used when the session will no longer exist or when for a particular client is leaving the session Eg:during the logout.sessiondestroyed is a method of HttpSessionLi...

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Manikant

• May 25th, 2006

Use can store variables in session, but u can store it in object form only.if it is primitive type u can use wrapper classes to convert it into object.session.setAttribute("test","xyzp");String str=(S...

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Mohit Singhal

• Jul 31st, 2006

The only way to know for sure is to set a cookie on a response, and see ifit comes back on the following request.  You have absolutely no clue fromlooking just at the current request.  Just ...

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siva kumar reddy

• Aug 1st, 2006

 pure servlet means we create any java objets that is implemented from javax.servler.Servlet interface.

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digvijayjpr

 Profile Answers by digvijayjpr Questions by digvijayjpr

• Oct 16th, 2006

Yes we can declare class level variable in a servlet but we can also use it in the class but as we know taht it is not in our hands to make the instaniate a servlet so cannot ...

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