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 do you mean by abstraction in C++?

1 1261

What do you mean by call by value and call by reference?

4 2218

What are the static members and static member functions?

1 1348

What is the difference between shallow copy and deep copy?

1 1328

How do you allocate and deallocate memory in C++?

1 1506

Which operator can not be overloaded in C++?

1 1227

Q1 On the screen how do you write the following words? she sells seashells by the seashore (a) all in one line (b) in three lines Q2 Write a program that asks interactively the user’s name and age and responds with Hello name, next year you will be next_age. where next_age is age + 1 Q3 For the different values of n, what is the output? printf(“%x %c %o %d”,n,n,n,n); (a) n = 67 (b) n = 20 (c) n = 128 (d) n = 255 (e) n = 100 Q4 What will be the output of the following program? int main() { char a,b,c; scanf(“%c %c %c”,&a,&b,&c); printf(“a=%c b=%c c=%c”,a,b,c); return 0; } [Note: The user input is:ABC DEF GHI]

1 2041

Write a C++ Program to Display Number (Entered by the User).

1 874

Identify the error in the following program. #include void main() { int i = 0; i = i + 1; cout « i « " "; /*comment *//i = i + 1; cout << i; }

1 891

Write a program to display the following output using a single cout statement Maths=90 Physics=77 Chemistry = 69

2 2165

Write a C++ Program to find Square Root of a number using sqrt() function.

1 1139

Write a C++ Program to Find Sum and Average of three numbers.

1 920

Write a program to read two numbers from the keyboard and display the larger value on the screen

1 1148

Write a C++ Program to Find whether given Number is Odd or Even.

1 1028

Write a C++ Program to Reverse a Number using while loop.

1 1042

Un-Answered Questions { C++ }

What is encapsulation in oop?

1041

What are the advantages of inheritance in c++?

1098

What are the two different types of polymorphism?

1141

Are strings mutable in c++?

1129

What are static variables?

1133

What are the rules about using an underscore in a c++ identifier?

1178

Can you explicitly call a destructor on a local variable?

1028

What is this pointer in c++?

1392

How is objective c different from c++?

1242

What's the best free c++ profiler for windows?

1078

Write a C/C++ program that connects to a MySQL server and checks if the InnoDB plug-in is installed on it. If so, your program should print the maximum number of concurrent threads that the InnoDB plug-in can create

2627

Is python written in c or c++?

1139

What is class and object in oops?

1136

Why is abstraction used?

1089

Explain the operation of overloading of an assignment operator.

1167

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