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

Evaluate the following expression as C++ would do :8 * 9 + 2 * 5 a) 82 b) 79 c) 370 d) list

963

Which is not an ANSII C++ function a) sin() b) tmpnam() c) kbhit()

1486

What does getch() do according to the ANSI C++ standard a) Reads in a character b) Checks the keyboard buffer c) Nothing in particular (Its not defined there)

1014

Will a C compiler always compile C++ code a) Yes b) No c) Only optimized compilers

1016

What ANSI C++ function clears the screen a) clrscr() b) clear() c) Its not defined by the ANSI C++ standard

995

What number of digits that can be accuratly stored in a float (based on the IEEE Standard 754)? a) 6 b) 38 c) An unlimited number

1221

Which of the following is evaluated first: a) && b) || c) !

2325

What does 7/9*9 equal ? a) 1 b) 0.08642 c) 0

920

Which of the following is not a valid declaration for main() a) int main() b) int main(int argc, char *argv[]) c) They both work

1027

Evaluate as true or false: !(1 &&0 || !1) a) True b) False c) Invalid statement

1115

Which command properly allocates memory a) char *a=new char[20]; b) char a=new char[20]; c) char a=new char(20.0);

1020

What operator is used to access a struct through a pointer a) >> b) -> c) *

1069

True or false, if you keep incrementing a variable, it will become negative a) True b) False c) It depends

2334

What character terminates all character array strings a) b) . c) END

1227

If you push the numbers (in order) 1, 3, and 5 onto a stack, which pops out first a) 1 b) 5 c) 3

1332

Un-Answered Questions { C++ }

What is size of string in c++?

943

Implement stack operations with pointers with appropriate exception checks.

942

What does ctime() do?

1068

Why multiple inheritance is not possible?

1032

Is python better than c++?

988

What are c++ storage classes?

1065

Is java easier than c++?

974

What is else syntax in c++?

1142

Why do we use pointers in c++?

992

Explain what happens when a pointer is deleted twice?

1208

What is a base class?

1063

What are the syntactic rules to be avoid ambiguity in multiple inheritance?

1139

What is abstraction in oops?

999

Is there structure in c++?

985

Differentiate between late binding and early binding. What are the advantages of early binding?

995

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