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 9650

Implement strncpy

3 10144

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

2 5488

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

3843

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 6290

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<<"["< 2417

explain dynamic binding by drowing

Cognizant,

2 7234

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

3 8619

What is the differances between a abstract calss and interface

Aviva, Symphony,

5 11001

why we cant create array of refrences

4 7718

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

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

18 46993

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

2 4599

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

4 34540

What are the advantanges of modularity

2 14709

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

2136

Un-Answered Questions { C++ }

Const char *p , char const *p What is the difference between the above two?

1211

What are the extraction and insertion operators in c++?

1000

Can we make any program in c++ without using any header file and what is the shortest program in c++.

1124

What do you mean by function pointer?

1103

Write a program using display() function which takes two arguments.

1070

Why was c++ made?

1086

What is const in c++?

1102

What is the main use of c++?

1123

Explain the concepts involved in Object Oriented programming.

1222

What is the extraction operator and what does it do?

1081

Describe the setting up of my member functions to avoid overriding by the derived class?

1132

why is c++ called oops? Explain

1040

What is encapsulation process?

1039

describe private access specifiers?

1233

What are different types of loops in c++?

1123

For More Un-Answered { C++ } Questions Click Here