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

1061

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

1601

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)

1110

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

1109

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

1101

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

1344

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

2428

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

1013

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

1148

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

1267

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

1124

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

1168

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

2442

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

1370

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

1445

Un-Answered Questions { C++ }

Explain the difference between new() and malloc() in c++?

1181

What is the purpose of enum?

1068

How does free know the size of memory to be deleted

934

How const int *ourpointer differs from int const *ourpointer?

1198

Explain all the C++ concepts using examples.

1260

What does it mean to declare a destructor as static?

1159

i wanted to know about questions about c,c++ , which is required for placements.... im a fresher

2276

What two types of containers does the stl provide?

1054

What are static member functions?

1171

What are the stages in the development cycle?

1116

Why is c++ called oops?

1284

What is an incomplete type in c++?

1353

What is #include iostream in c++?

1120

What is endianness?

1158

What do you mean by public protected and private in c++?

1123

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