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 9808

Implement strncpy

3 10281

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

2 5620

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

3897

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 6417

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<<"["< 2479

explain dynamic binding by drowing

Cognizant,

2 7379

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

3 8782

What is the differances between a abstract calss and interface

Aviva, Symphony,

5 11226

why we cant create array of refrences

4 7900

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

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

18 47628

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

2 4723

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

4 34717

What are the advantanges of modularity

2 14836

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

2187

Un-Answered Questions { C++ }

Write a code/algo to find the frequency of each element in an array?

1172

What are classes oop?

1094

How do you invoke a base member function from a derived class in which you’ve overridden that function?

1176

How do I convert a stl file?

1194

Can I run c program in turbo c++?

1086

What is encapsulation and abstraction? How are they implemented in C++?

1192

Which operations are permitted on pointers?

1048

Declare a pointer to a function that takes a char pointer as argument and returns a void pointer.

1062

What is the iunknown interface?

1187

Which c++ operator cannot overload?

1082

Can I learn c++ without knowing c?

1124

Explain method of creating object in C++ ?

1164

Is empty stack c++?

1060

Should the this pointer can be used in the constructor?

1079

Explain shallow copy?

1115

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