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

what is the virtual function overhead, and what is it used for ? i hope i can get and appropriate answers, thanks a lot....

6 11538

what is a ststic variable and stiticfunction briefly explain with exmple and in which case we use

HCL,

2 7125

What will happen when the following code is run: int x; while(x<100) { cout< 7 9790

In the following declaration of main, "int main(int argc, char *argv[])", to what does argv[0] usually correspond? 1) The first argument passed into the program 2) The program name 3) You can't define main like that

6 15024

What does the code "cout<<(0==0);" print? 1) 0 2) 1 3) Compiler error: Lvalue required

ISTS, Wipro,

15 24171

What is the output of the following code: int v() { int m=0; return m++; } int main() { cout< 4 9165

What is the correct syntax for inheritance? 1) class aclass : public superclass 2) class aclass inherit superclass 3) class aclass <-superclass

Wipro,

6 14994

What is the outcome of the line of code "cout<

TCS,

16 22947

What is Iteration Hierarchy? What is what is Object behavioral concept?

1 5647

Q1. A. What is unary operator? List out the different operators involved in the unary operator. B. What is an adjust field format flag? Q2. A. Distinguish between a # include and #define. B. Can a list of string be stored within a two dimensional array? Q3. A.Explain how a pointer to function can be declared in C++? B.List the merits and demerits of declaring a nested class in C++? Q4. A. What are the syntactic rules to be avoid ambiguity in multiple inheritence? B. Explain the operation of overloading of an assignment operator. Q5. A. Explain how the virtual base class is different from the conventional base classes of the opps. B. Explain how an exception handler is defined and invoked in a Program. Q6. A. What is a binary file? List the merits and demerits of the binary file usagein C++. B. Write short notes on Text Manipulation Routines. C. Write bites in Turbo c++ Header (“Include”) Files.

GE, Infosys, Microsoft, NIM,

2774

Find the second maximum in an array?

HCL,

12 25996

"How will you merge these two arrays? Write the program Array: A 1 18 22 43 Array: B 3 4 6 20 34 46 55 Output Array: C 1 3 4 6 18 20 22 34 43 46 55"

College School Exams Tests, HCL,

9 24302

what is the function of 'this' operator ?

Wipro,

7 28238

tell about copy constructor

Siemens,

3 8111

if u write a class do u write Assignment operator and copy constructor

Siemens,

1 6137

Un-Answered Questions { C++ }

What is a standard template library (stl)?

1133

How many different levels of pointers are there?

1215

What is a manipulative person?

1021

What are the benefits of oop?

1264

Write about the use of the virtual destructor?

1009

write a program to find 2 power of a 5digit number with out using big int and exponent ?

2388

What is a .lib file in c++?

1000

What do you mean by translation unit?

1098

Can static class have constructor?

1038

Explain function overloading

1022

What is difference between n and endl in c++?

1096

What is the best c c++ compiler for windows?

1066

What is the renewal class?

2763

What are the advantages of using a pointer? Define the operators that can be used with a pointer.

1035

Should you pass exceptions by value or by reference?

1137

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