C++ General Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

C++ General Interview Questions

Questions Answers Views Company eMail

write the programme that convert a interger to biniry number

Amazon,

1 2945

difference between macro and function?

3 7082

Can we remove an element in a single linked list without traversing? Lets suppose the link list is like this 1 2 3 4 5 6 We need to remove 4 from this list (without traversing from beginning) and the final link list shud be 1 2 3 5 6 only thing we know is the pointer to element "4". How can we remove "4" and link "3" to "5"?

CSC,

6 8776

Under what conditions is multiple inheritance not recommended?

1 5603

diff between pointer and reference in c++?

1 5001

How size of a class can be calulated?

2 4859

What is optimization in c++? when using volatile.optimization is not possible..what does this mean?

1 4068

how is returning structurs from functions?Show an eg?

GE,

1 4708

What is the difference in size of this two clasees? Class A { int a; char c; float f; } Class B { float f; char c; int a; }

4 6039

Is there a datatype string in c++?How is the memory allocation?

3 5096

Difference between linked list and array?

3 6548

What is the difference between Char a[ ]=”string” and char *a=”String”

Adobe,

11 18748

what are prototypes

Infosys, TCS,

4 7512

Why can you not make a constructor as const?

3 6675

what is polymorphism?

Accenture,

14 18316

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Un-Answered Questions { C++ General }

Why do we need c++?

1052

Write a program to interchange 2 variables without using the third one.

1054

what is data abstraction in C++?

1080

Can I have a reference as a data member of a class? If yes, then how do I initialise it?

1221

How do you declare A pointer to function which receives an int pointer and returns a float pointer

1208

Differentiate between a pointer and a reference with respect to c++.

1244

How do you establish an is-a relationship?

1153

What is the difference between cin.read() and cin.getline()?

1079

Write a C++ Program to check whether a number is prime number or not?

1128

What do you mean by translation unit?

1093

What is the extraction operator and what does it do?

1081

What is the use of 'this' pointer?

1249

Explain the difference between class and struct in c++?

1041

what is the difference between linear list linked representaion and linked representation? what is the purpose of representing the linear list in linked represention ? is it not avoiding rules of linear represention?

2355

How to get the current position of the file pointer?

1039

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