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

Implement strcmp

Bloomberg, Citadel,

3 9661

Implement strncpy

3 10148

how can u create a doubly linked list with out using pointers?

2 5499

Write a program using GUI concept for the scheduling algorithms in Operating system like SJF,FCFS etc..

3850

Base class has two public data members. How can i derive a new class with one datamember as public and another data member as private?.

2 6314

how can i access a direct (absolute, not the offset) memory address? here is what i tried: wrote a program that ask's for an address from the user, creates a FAR pointer to that adress and shows it. then the user can increment/decrement the value in that address by pressing p(inc+) and m(dec-). NOW, i compiled that program and opened it twice (in 2 different windows) and gave twice the same address to it. now look what happen - if i change the value in one "window" of the program, it DOES NOT change in the other! even if they point to the same address in the memory! here is the code snippet: //------------------------------------------------------ #include //INCLUDE EVERY KNOWN HEADER FILE #include //FOR ANY CASE... #include #include #include main() { int far *ptr; //FAR POINTER!!! long address; char key=0; //A KEY FROM THE KEYBOARD int temp=0; clrscr(); cout<<"Enter Address:"; cin>>hex>>address; //GETS THE ADDRESS clrscr(); (long)ptr=address; temp=*ptr; //PUTS THE ADDRESS IN THE PTR cout<<"["< 2423

explain dynamic binding by drowing

Cognizant,

2 7251

how can we design a magic square in c++?or suggest me the basic idea of it.

3 8622

What is the differances between a abstract calss and interface

Aviva, Symphony,

5 11028

why we cant create array of refrences

4 7739

what is difference b/w object based and object oriented programming language?

Chaitanya, College School Exams Tests, Educomp, IBM, Infosys, Telko,

18 47066

I am doing my BS.c MATHS CAN I ABLE TO JOIN IN NIIT?

2 4606

what is multithreading in c++ , what is difference between multithreading and singlethreading.

4 34554

What are the advantanges of modularity

2 14717

How to handle exception in c++, For example in a functions i am assigning memory to some variables and also in next instructions in am dividing one variable also. If this functions generates a error while allocating memory to those variable and also while dividing the variable if i divide by zero then catch block how it will identify that this error has cone from perticular instruction

2144

Un-Answered Questions { C++ }

What is a multiset c++?

1151

What is encapsulation in simple terms?

1041

What is meant by the term name mangling in c++?

961

What are the advantages of using const reference arguments in a function?

1077

What is difference between polymorphism and inheritance?

1089

List the special characteristics of constructor.

1180

What are guid? Why does com need guids?

1055

What is constructor overloading in oop?

1137

Write a program to find the reverse Fibonacci series starting from N.

1274

Differentiate between the message and method in c++?

1075

What is the best c++ compiler?

1163

What is atoi?

973

Can we define a constructor as virtual in c++?

1129

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2091

How do I start a c++ project?

1081

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