C++ Interview Questions
Questions Answers Views Company eMail

What is Copy Constructor?

ABC, Siemens,

5 18580

What is an abstract class?

Siemens,

5 9902

What is the difference between creating an object, using 'new' and using 'malloc'?

HFG, Siemens,

3 11148

What is a virtual base class?

Fidelity, Siemens,

6 22687

What is OOPS and How it is different from Procedural Programming ?

HP, Infosys, Thyrocare,

23 65619

Difference between Top down and bottom up approaches for a given project ?

BSNL, CSC, HCL, HP, IIT, Infosys, Siemens,

14 105060

What and all can a compiler provides by default?

Accenture, HP,

3 14157

What are the different operators in C++?

HP,

3 13097

What is the difference between method and message?

HP,

5 55737

What is difference between initialization and assignment?

HCL, HP, Infosys,

12 59536

when can we use copy constructor?

HP,

6 15324

Describe functional overloading?

HP,

6 10868

Difference between Overloading and Overriding?

Appnetix Techno, GameLoft, HP, IBM, NIIT, Rohde and Schwarz,

35 194630

Difference between Operator overloading and Functional overloading?

HP,

10 50912

What is virtual constructor paradigm?

HCL, HP,

5 13571


Un-Answered Questions { C++ }

What are formatting flags in ios class?

597


What are different oops concepts?

562


Give an example where we have to specifically use C programming language and C++ programming language cannot be used?

1131


Which one between if-else and switch is more efficient?

593


What is atoi in c++?

555






Why would you use pointers in c++?

613


Can we use this pointer in a class specific, operator-overloading function for new operator?

602


What is a COPY CONSTRUCTOR and when is it called?

502


What is polymorphism explain its types?

666


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1772


what is a pragma in C++?

625


How do you find out if a linked-list has an end?

634


What is class and object in oops?

597


How do you print a string on the printer?

563


What language does google use?

576