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Arrays, Strings, Pointers and References in C++ Interview Questions

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Arrays in C++ An array is a data structure which allows a collective name to be given to a group of elements which all have the same type. An individual element of an array is identified by its own unique index (or subscript). An array can be thought of as a collection of numbered boxes each containing one data item. C++ provides a simple, safe alternative to using char*s to handle strings. The C++ string class, part of the std namespace, allows you to manipulate strings safely. Declaring a string is easy: using namespace std; string my_string;

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Difference between stack memory and heap memory?
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What is importance of const. pointer in copy constructor?

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What is "strstream??

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Why always array starts with index 0?

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What is a memory leak? How can we avoid it?
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Define a class to represent a bank account. In the class, include the following members:
Data members: name of the depositor, account number, type of account, and balance amount in the account.
Member functions: to assign initial values, to deposit an amount, to withdrawal an amount after checking the balance, and to display the name and balance.
Write main() code to test your class?
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Where we use reference and where we use pointers ?Write their differences and advantages and disadvantages .
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Can you allocate the memory using malloc() in C and deallocate the same memory using free() in c++

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What is the real-time example for abstract class and pure virtual function?
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Explain "passing by value", "passing by pointer" and "passing by reference"

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What happens to the member pointers when an exception occurs in constructor, while allocating memory?How can we over come this ?

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Can you store multiple data types in System.Array?
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Difference between "vector" and "array"?

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When does a name clash occur?
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What is meant by ?method-wars??
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What is the difference between realloc() and free()?
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Whether unified method and unified modeling language are same or different?
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How to write programing in c++ language to find a solution to an equation by using stack?
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What problem does the namespace feature solve?
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You have two pairs: new() and delete() and another pair : alloc() and free().
Explain differences between eg. new() and malloc()
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Latest 20 Questions
Payment of time- barred debt is: (a) Valid (b) Void (c) Illegal (d) Voidable
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
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