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

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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

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);

1059

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

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

Un-Answered Questions { C++ }

What is the best ide for c++?

1094

What do you understand by zombie objects in c++?

1102

Explain deep copy and a shallow copy?

1067

Mention the ways in which parameterized can be invoked.

931

Can I learn c++ as my first language?

1113

If you want to share several functions or variables in several files maitaining the consistency how would you share it?

991

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

1185

write a program that reads in a file and counts the number of lines, words, and characters. Your program should ask the user to input a filename. Open the file and report an error if the file does not exist or cannot be opened for some other reason. Then read in the contents of the file and count the number of lines, words, and characters in the file. Also print additional information about the file, such as the longest and shortest words, and longest and shortest lines. For simplicity, we define a word to be one or more characters ending with white space (a space, tab, carriage return, etc.). Functions for checking the types of characters can be found in the ctype.h header file, so you want to include this header file in your program. For example, the sentence below could be all that is in a file. This sentence IT 104 is taught in C++. has 32 characters, one line, and six words. The shortest line is 32 characters. The longest line is 32 characters. The shortest word is 2 characters. The longest word is 6 characters

5326

can inline function declare in private part of class?

4415

Which sort is best for the set: 1 2 3 5 4 a) Quick Sort b) Bubble Sort c) Merge Sort

1059

Is it possible to pass an object of the same class in place of object reference to the copy constructor?

1048

What is lambda expression c++?

1058

What is the difference between a pointer and a link in c ++?

1057

What is the protected keyword used for?

1113

How can you overcome the diamond problem in inheritance?

1184

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