C++ Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

STL (140)
OOPS (873)
C++ General (2409)

C++ Interview Questions

Questions Answers Views Company eMail

when can we use virtual destructor?

HCL, HP, Virage Logic,

7 28259

What is the difference between Class and Structure?

HP, IBM, Samsung, TCS,

40 231045

What is size of null class?

HP,

6 18070

Is structure can be inherited?

HP, ST Micro,

5 17794

How the V-Table mechanism works?

HP,

6 23555

What is the STL?

Epson, HP,

2 9579

what is a template?

Amazon, BITS, IBS, Wipro,

2 10436

what is an algorithm in terms of STL?

Lucent, Wipro,

1 8775

What is the difference between public, private, protected inheritance?

Wipro,

12 63801

What is Virtual Inheritance?

Amazon, Wipro,

7 18836

What is the difference between operator new and the new operator?

Amazon, TCS, Wipro,

3 14517

What happens if an exception is throws from an, object's constructor and object's destructor?

Wipro,

4 18628

What is the difference between Pointer and a Reference? When you would use them?

Wipro,

4 15188

What are the differences between a struct in C and in C++?

Amazon, Wipro,

8 18876

What are the differences between a struct and a class in C++?

Amazon, Wipro,

7 14312

Un-Answered Questions { C++ }

Will c++ be replaced?

1040

What are stacks?

1052

Who created stl?

1163

How to call a non virtual function in the derived class by using base class pointer

6535

What are vtable and vptr?

1138

What are structures and unions?

998

Why do we use pointers in c++?

1022

Why is polymorphism used?

1035

How do you define a class in oop?

1112

what do you mean by volatile variable?

1047

Should I learn c++ c?

1041

Can an interface inherit a class?

1052

What's the order in which the objects in an array are destructed?

1401

What is pure virtual function?

1060

What is namespace & why it is used in c++?

1109

For More Un-Answered { C++ } Questions Click Here