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 27984

What is the difference between Class and Structure?

HP, IBM, Samsung, TCS,

40 229625

What is size of null class?

HP,

6 17790

Is structure can be inherited?

HP, ST Micro,

5 17568

How the V-Table mechanism works?

HP,

6 23311

What is the STL?

Epson, HP,

2 9419

what is a template?

Amazon, BITS, IBS, Wipro,

2 10283

what is an algorithm in terms of STL?

Lucent, Wipro,

1 8659

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

Wipro,

12 63248

What is Virtual Inheritance?

Amazon, Wipro,

7 18489

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

Amazon, TCS, Wipro,

3 14280

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

Wipro,

4 18410

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

Wipro,

4 14961

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

Amazon, Wipro,

8 18555

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

Amazon, Wipro,

7 14021

Un-Answered Questions { C++ }

What is a pointer how and when is it used?

1031

Why namespace is used in c++?

1010

In C++ what is a vtable and how does it work?

981

What is debug class?what is trace class? What differences are between them? With examples.

2133

What is #include cmath?

1040

How does polymorphism work?

1076

What does it mean to declare a member function as static?

1013

what is the difference between linear list linked representaion and linked representation? what is the purpose of representing the linear list in linked represention ? is it not avoiding rules of linear represention?

2287

What is a modifier in c++?

1078

What is the real time example of inheritance?

1079

What is c++ good for?

1001

what is the use of void main() in C++ language?

1062

Explain differences between alloc() and free()?

1043

Can non-public members of another instance of the class be retrieved by the method of the same class?

1029

Who wrote stl?

1080

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