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

What does the following do: for(;;) ; a) Illegal b) Loops forever c) Ignored by compiler...not illegal

1131

Of the numbers 12 23 9 28 which would be at the top of a properly implemented maxheap a) 28 b) 9 c) Any of them could be

1372

What are pointers, when declared, intialized to a) NULL b) Newly allocated memory c) Nothing. Its random

1095

What is the last index number in an array of 100 characters a) 100 b) 99 c) 101

1103

Would you rather wait for quicksort, linear search, or bubble sort on a 200000 element array? (Or go to lunch...) a) Quicksort b) Linear Search c) Bubble Sort

1008

What do nonglobal variables default to a) auto b) register c) static

1117

Which header file allows file i/o with streams a) fileio.h b) iostream.h c) fstream.h

1089

What is the outcome of cout< a) 16 b) 17 c) 16.5

981

What will strcmp("Astring", "Astring"); return a) A positive value b) A negative value c) Zero

1066

Evaluate !(1&&1||1&&0) a) Error b) False c) True

1168

What header file is needed for exit(); a) stdlib.h b) conio.h c) dos.h

1019

Will a recursive function without an end condition every quit, in practice a) Compiler-Specific (Some can convert to an infinite loop) b) No c) Yes

1044

which of the following is not an secondary constant a) array b) real c) union

1772

an operation between an integer and real always yeilds a) integer result b) real result c) float result

1125

which operator is used for performing an exponential operation a) > b) ^ c) none

1008

Un-Answered Questions { C++ }

What are the stages in the development cycle?

1005

How do you find out if a linked-list has an end?

1086

Is eclipse good for c++?

1004

What are pointer-to-members in C++? Give their syntax.

1103

What are virtual constructors/destructors?

962

What is the advantage of oop over procedural language?

1028

Why should a c++ programmer be interested in stl?

1049

what is Loop function? What are different types of Loops?

1179

What is difference between data abstraction and encapsulation?

1050

What is data abstraction? How is it different from data encapsulation?

956

What is wrapper class in c++?

1065

What is difference between n and endl in c++?

1051

Define basic type of variable used for a different condition in C++?

1065

Who was the creator of c++?

1010

How do I convert a stl file?

1049

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