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 11772

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

HCL,

2 7260

What will happen when the following code is run: int x; while(x<100) { cout< 7 10034

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 15260

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

ISTS, Wipro,

15 24623

What is the output of the following code: int v() { int m=0; return m++; } int main() { cout< 4 9312

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

Wipro,

6 15198

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

TCS,

16 23488

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

1 5723

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,

2856

Find the second maximum in an array?

HCL,

12 26330

"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 24592

what is the function of 'this' operator ?

Wipro,

7 28474

tell about copy constructor

Siemens,

3 8256

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

Siemens,

1 6222

Un-Answered Questions { C++ }

When we use Abstract Class and when we use Interface?where we will implement in real time?

2248

Why is c++ considered difficult?

1227

What is the difference between #import and #include?

1106

Comment on assignment operator in c++.

1173

What is stack unwinding?

1211

How connect plc and pc through software

2553

In what scenario does the Logical file and Physical file being used?

2959

What is vector processing?

1210

What is std :: endl?

1081

Explain what happens when an exception is thrown in C++.

1005

Define a nested class.

1127

What is the basic of c++?

1114

what is C++ exceptional handling?

1262

is there any choice in opting subjects like 4 out of 7

2253

What makes a language oop?

1139

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