Search Interview Questions
Question: What is Cleanup mechanism in symbian?
Answer: To handle the exceptions in symbian we used the cleanup stack mechanism.The Symbian exception mechanism is based on leaving.The most important issue here is the Cleanup Stack.
Symbian OS is optimized for low resource usage, and when an unexpected event occurs, there is a need to clean up all the currently allocated objects. To ensure you actually de-allocate ANY object you create, there is a stack, named the ?Cleanup Stack?, where you push any object that needs to be de-allocated later. Consider this example:
CDemo* demo = new CDemo;
If the DangerousOperationL() leaves, the delete demo will never be reached, hence leaving the demo object allocated. The correct way is to use the cleanup stack as following:
CDemo* demo = new CDemo();
When you create an object with new or NewL, you have to push it on the Cleanup Stack if any action that follows can leave. If you allocate an object with NewLC, it will be already pushed on the Cleanup Stack at the creation.
After you are done with your object, you should destroy it. If the object is already on the Cleanup Stack, you should remove it from the stack with Pop then delete it. Or better, you can call PopAndDestroy to do both of them in a single step .
Question: What is Cleanup mechanism in symbian?
To handle the exceptions in symbian we used the cleanup stack mechanism.The Symbian exception mechanism is based on leaving.The most important issue here is the Cleanup Stack.
If you have the better answer, then send it to us. We will display your answer after the approval
Rules to Post Answers in CoolInterview.com:-
Please Note: We keep on updating better answers to this site. In case you are looking for Jobs, Pls Click Here Vyoms.com - Best Freshers & Experienced Jobs Website.
India News Network
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