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

What is a pure virtual function? Why is it represented as = 0...how is the internal implementation for the same

CTS,

3 8358

What are smart pointer? Whats its use?

CTS,

1 5661

What are function poinetrs? where are they used?

CTS,

1 4495

How many pointers are required to reverse a link list?

CTS,

5 11168

How many types of casting are there in C++? When is a dynamic cast,static_cast,reinterpret cast used?

CTS,

2 9332

Write a program to swap 2 chars without using a third varable? char *s = "A"; char *p = "B";

CTS,

7 24848

What are Binay tress and B trees? Diff between them?

CTS, GATE, Wipro,

8 15148

why we call c++ is object oriented lanaguage

HCL,

7 14220

WILL I GET A guaranteed JOB AFTER DOING bsc()IT) and GNIIT from an NIIT CENTRE??

Biocon, MIT, NIIT,

21 37228

Am studying basic c++ programming, have been given the following assignment. Design a linear program to calculate the maximum stress a material can withstand given a force and a diameter of a circle. To find the required area pi should be defined. Have most of the program sorted out but am at a loss as to how to show the calculations required. Can anyone help?

2202

Explain when u will use Observer pattern and how u will implement in c++ .

1 4648

What is the difference between static link library and dynamic link library?

Tech Mahindra,

7 21077

In multilevel inheritance constructors will be executed from the .... class to ... class

ABCO, TCS,

2 15743

reading material is provided 3 books for c++ if u need more do let me know thnx i hve lots of material do let me know if u want it

2 4759

what is template and type convertion

TATA,

2458

Un-Answered Questions { C++ }

Write a program to concatenate two strings.

1098

What is polymorphism used for?

1073

What does asterisk mean in c++?

1121

What does int * mean in c++?

1234

Define stl.

1275

How can an improvement in the quality of software be done by try/catch/throw?

1071

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

1642

What is null pointer and void pointer and what is their use?

1103

What is difference between data abstraction and encapsulation?

1091

What is runtime polymorphism in c++?

1168

What is std namespace in c++?

1190

Should a constructor be public or private?

1042

What is meaning of in c++?

1220

What are stacks?

1070

Explain stack & heap objects?

1064

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