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

Distinguish between: a) Normal layout & Print Layout views b) Windows Clipboard & office Clipboard c) Save & Save As Commands d) Program File & Data File e) Pie Charts & Barr Charts

2286

What is Object Oriented programming.what is the difference between C++ and C?

Infosys,

8 25472

Memory is not a constraint. In a single iteration(NOTE: you can't go back), how will you find out the 10th last node/item in a linked list.

BNB, FDS, Goldman Sachs, Nagarro,

16 27898

how to swap two numbers with out using temp variable

Global eProcure, TCS,

12 21112

Can we use resume in error handling i.e. in the catch block

Infosys,

5 10398

this is to swap to strings....but in output the whole strings are swapped leaving first as it is...why it is so #include int main() { char a[]="ajeet"; char b[]="singh"; long x=*a; long y=*b; cout< 1 4640

how to swap two strings without using any third variable ?

11 39495

What is Object Oriental Progam

2 5212

What is Constructor

Angel Broking,

14 31339

Waht is inheritance

6 9452

what is strcture i++ i ++i answer to this i=5 what is the out put

6 11889

how can u do connectivity in c++ language? plz send me connectivity code in c++ ?

Ascent,

2359

why destructor is not over loaded?

5 19058

Why many objects can working together? How objects working togetherM I want to see example code.

2 5122

suppose A is a base class and B is the derved class. Both have a method foo which is defined as a virtual method in the base class. You have a pointer of classs B and you typecast it to A. Now when you call pointer->foo, which method gets called? The next part of the question is, how does the compiler know which method to call?

EA Electronic Arts,

3 9702

Un-Answered Questions { C++ }

What are friend classes?

1075

Can we delete this pointer in c++?

1229

What are c++ storage classes?

1112

Explain the extern storage classes in c++.

1061

What type of question are asked in GE code writing test based on c++ data structures and pointers?

3988

We all know that a const variable needs to be initialized at the time of declaration. Then how come the program given below runs properly even when we have not initialized p?

1090

Write about the scope resolution operator?

1043

What is else syntax in c++?

1219

How is c++ used in the real world?

1044

What are the basics of local (auto) objects?

1150

What are c++ manipulators?

1085

What is a catch statement?

1059

Why would you use pointers in c++?

1159

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<<"["<

2432

What does new return if there is insufficient memory to make your new object?

1042

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