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 28036

What is the difference between Class and Structure?

HP, IBM, Samsung, TCS,

40 229883

What is size of null class?

HP,

6 17847

Is structure can be inherited?

HP, ST Micro,

5 17623

How the V-Table mechanism works?

HP,

6 23355

What is the STL?

Epson, HP,

2 9445

what is a template?

Amazon, BITS, IBS, Wipro,

2 10323

what is an algorithm in terms of STL?

Lucent, Wipro,

1 8686

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

Wipro,

12 63344

What is Virtual Inheritance?

Amazon, Wipro,

7 18551

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

Amazon, TCS, Wipro,

3 14312

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

Wipro,

4 18450

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

Wipro,

4 15003

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

Amazon, Wipro,

8 18610

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

Amazon, Wipro,

7 14077

Un-Answered Questions { C++ }

Is c++ platform dependent?

1040

What is c++ code?

1078

Define the process of handling in case of destructor failure?

1006

If a round rectangle has straight edges and rounded corners, your roundrect class inherits both from rectangle and from circle, and they in turn both inherit from shape, how many shapes are created when you create a roundrect?

1079

How does atoi function work?

1110

On throwing an exception by the animal constructor in p = new animalq, can memory leak occur?

1084

What is a type library?

1073

Explain encapsulation in C++.

947

What programming language should I learn first?

1048

What are virtual functions in c++?

1127

What is the need of a destructor? Explain with the help of an example.

962

Explain about Virtual Function in C++?

979

What is the difference between a template and a macro?

1006

What is the role of copy constructor in copying of thrown objects?

1013

Can we make copy constructor private in c++?

1019

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