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

C++ General 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

1004

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

1537

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)

1056

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

1055

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

1034

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

1276

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

2371

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

962

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

1082

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

1188

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

1060

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

1123

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

2389

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

1281

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

1378

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Un-Answered Questions { C++ General }

What are inline functions? What is the syntax for defining an inline function?

1161

What is the default access level?

1071

Explain terminate() function?

1057

Is c++ platform dependent?

1081

What is null and void pointer?

1063

Does c++ vector allocate memory?

1014

Are strings immutable in c++?

1160

Is python written in c or c++?

1149

write asingle linked list which read from two list & the do the following 1 sort the prime & nonprime num (prime should be less tn nonprime) 2 each node has a prime num followd by nonprime 3 add a new node into its sutable plce 4 erase the most three duplicated non prime num 5 find the least duplicated prime num

2634

What is an adaptor class or wrapper class in c++?

1237

Should the member functions which are made public in the base class be hidden?

1034

How would you use the functions randomize() and random()?

1083

What is the role of copy constructor in copying of thrown objects?

1070

Write about all the implicit member functions of a class?

1062

What is ofstream c++?

1088

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