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

1003

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)

1055

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

1275

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

2370

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

960

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

1186

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

1055

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

1122

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

2387

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 is the difference between global variables and local variable

1066

What is the difference between containment and delegation?

1334

How do you instruct your compiler to print the contents of the intermediate file showing the effects of the preprocessor?

1150

What is the type of 'this' pointer? When does it get created?

953

What is the difference between structure and class?

1278

Write my own zero-argument manipulator that should work same as hex?

1053

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

1070

How do I use arrays in c++?

1005

Array base access faster or pointer base access is faster?

2306

If dog is a friend of boy, is boy a friend of dog?

984

Write a program for Divide a number with 2 and Print the output ( NOTE: Check for divide by zero error).

1111

Can we use struct in c++?

1026

What is vector pair in c++?

1229

Differentiate between an array and a list?

1180

What is a constant reference?

1076

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