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 11533

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

HCL,

2 7122

What will happen when the following code is run: int x; while(x<100) { cout< 7 9781

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 15014

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

ISTS, Wipro,

15 24146

What is the output of the following code: int v() { int m=0; return m++; } int main() { cout< 4 9155

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

Wipro,

6 14983

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

TCS,

16 22926

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 25982

"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 24291

what is the function of 'this' operator ?

Wipro,

7 28223

tell about copy constructor

Siemens,

3 8101

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

Siemens,

1 6133

Un-Answered Questions { C++ }

What is polymorphism and its type in c++?

1079

When does a 'this' pointer get created?

1097

Are vectors faster than arrays?

1005

What is the hardest coding language to learn?

1042

What is stack unwinding?

1145

What is the types of inheritance?

1098

What is the best way to declare and define global variables?

1334

When is dynamic checking necessary?

1117

Why we use #include iostream in c++?

1057

What is stl containers in c++?

1051

What is static modifier?

1225

What function initalizes variables in a class: a) Destructor b) Constitutor c) Constructor

1162

Is map thread safe c++?

1080

Can you help me with this one? Make a program that when a user inputed a Product Name, it will display its price, and when the user inputed the quantity of the inputed product, it will show its total price. The output must be like this: Product Name: Price: Quantity: Total Price: ..this is the list of products to be inputed: Cellphone - 1500 Washing Machine - 5200 Television - 6000 Refrigirator - 8000 Oven - 2000 Computer - 11000 thanks..:D

3668

Explain what are the sizes and ranges of the basic c++ data types?

1161

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