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A servlet is a Java programming language class that is used to extend the capabilities of servers that host applications accessed by means of a request-response programming model. Although servlets can respond to any type of request, they are commonly used to extend the applications hosted by web servers. A servlet is a small program that runs on a server. The term was coined in the context of the Java applet, a small program that is sent as a separate file along with a Web (HTML) page. Java servlets are becoming increasingly popular as an alternative to CGI programs. The biggest difference between the two is that a Java applet is persistent.
|Servlet is Java class. Then why there is no constructor in Servlet ? Can we write the constructor in Servlet
|How do we prevent user to read secured page.. after logout
|After converting jsp into servlet which methods are present i.e all 6 methods(jspinit(),_jspService(),jspDestroy(),init(),service(),destroy()) or only 3 methods i.e either jsp life cycle methods or servlet lifecycle methods
|How to build struts in java?
What are the function of struts?
|How much amount of information will be stored within a session
|What is the super class of All servlets?
|Why is the action class is singleton in nature? Isn't this creates a bottleneck for the requests?
|What is the use of findbyprimarykey()?
|What information that the ServletResponse interface gives the servlet methods for replying to the client?|
|When a client request is sent to the servlet container, how does the container choose which servlet to invoke?|
|Can we override the service method?
if we can do that then why do we override only doGET()
and doPost() methods if the servlet is of protocol specific?
|What will happen when we call the destroy method in the init method? will the servlet exist?
|Whats the difference between using invalidate() & sessionDestroyed for sessionclosing.
|Suppose there are 15 links on the homepage of a site and each link creates a new request, how your servlet controller would handle it? (Assuming you are using MVC-2)
|How can you do ErrorMapping in Action class?
|How the server will know (i.e) when it can invoke init, service,destroy methods of servlet life cycle?
|Why init is used and not constructor for servlets initialization?
|How many times instantiation phase executed in Servlets?Explain briefly.|
|Do we have a constructor in servlet ?Can we explicitly provide a constructor in servlet program?
Can we call "destroy" method from "init" method()?
If so what will happen?
|What are the various different input parameters which servlets accept?|
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Latest 20 Questions
Payment of time- barred debt is:
Consideration is defined in the Indian Contract Act,1872 in: (a) Section 2(f) (b) Section 2(e) (c) Section 2(g) (d) Section 2(d)
Which of the following is not an exception to the rule, "No consideration, No contract": (a) Natural love and affection (b) Compensation for involuntary services (c) Completed gift (d) Agency
Consideration must move at the desire of: (a) The promisor (b) The promisee (c) The promisor or any other party (d) Both the promisor and the promisee
An offer which is open for acceptance over a period of time is: (a) Cross Offer (b) Counter Offer (c) Standing Offer (d) Implied Offer
Specific offer can be communicated to__________ (a) All the parties of contract (b) General public in universe (c) Specific person (d) None of the above
_________ amounts to rejection of the original offer. (a) Cross offer (b) Special offer (c) Standing offer (d) Counter offer
A advertises to sell his old car by advertising in a newspaper. This offer is caleed: (a) General Offer (b) Special Offer (c) Continuing Offer (d) None of the above
In case a counter offer is made, the original offer stands: (a) Rejected (b) Accepted automatically (c) Accepted subject to certain modifications and variations (d) None of the above
In case of unenforceable contract having some technical defect, parties (a) Can sue upon it (b) Cannot sue upon it (c) Should consider it to be illegal (d) None of the above
If entire specified goods is perished before entering into contract of sale, the contract is (a) Valid (b) Void (c) Voidable (d) Cancelled
______________ contracts are also caled contracts with executed consideration. (a) Unilateral (b) Completed (c) Bilateral (d) Executory
A offers B to supply books @ Rs 100 each but B accepts the same with condition of 10% discount. This is a case of (a) Counter Offer (b) Cross Offer (c) Specific Offer (d) General Offer
_____________ is a game of chance. (a) Conditional Contract (b) Contingent Contract (c) Wagering Contract (d) Quasi Contract
There is no binding contract in case of _______ as one's offer cannot be constructed as acceptance (a) Cross Offer (b) Standing Offer (c) Counter Offer (d) Special Offer
An offer is made with an intention to have negotiation from other party. This type of offer is: (a) Invitation to offer (b) Valid offer (c) Voidable (d) None of the above
When an offer is made to the world at large, it is ____________ offer. (a) Counter (b) Special (c) General (d) None of the above
Implied contract even if not in writing or express words is perfectly _______________ if all the conditions are satisfied:- (a) Void (b) Voidable (c) Valid (d) Illegal
A specific offer can be accepted by ___________. (a) Any person (b) Any friend to offeror (c) The person to whom it is made (d) Any friend of offeree
An agreement toput a fire on a person's car is a ______: (a) Legal (b) Voidable (c) Valid (d) Illegal