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 1259

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

4 2216

What are the static members and static member functions?

1 1346

What is the difference between shallow copy and deep copy?

1 1327

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

1 1505

Which operator can not be overloaded in C++?

1 1226

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 2040

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

1 869

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

1 888

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

2 2161

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

1 1135

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

1 917

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

1 1145

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

1 1026

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

1 1037

Un-Answered Questions { C++ }

What is the maximum value of a unsigned char a) 255 b) 256 c) 128

1066

Write a function to perform the substraction of two numbers. Eg: char N1="123", N2="478", N3=-355(N1-N2).

995

What is pair in c++?

1061

When the constructor of a base class calls a virtual function, why doesn't the override function of the derived class gets called?

1090

Explain the pure virtual functions?

1115

write a program to enter a string like"sunil is a good boy and seeking for a job" not more than 10 characters including space in one line,rest characters should b in other line.if the next line starts from in between the previous word,then print whole word to next line.

2233

Is c++ low level?

1029

Explain static and dynamic memory allocation with an example each.

1099

Write a program in c++ to print the numbers from n to n2 except 5 and its multiples

2474

Explain one method to process an entire string as one unit?

1579

What do you mean by funtion prototype?

1079

What is virtual base class uses?

1341

Differentiate between an inspector and a mutator ?

1214

How can you quickly find the number of elements stored in a static array?

1087

How should runtime errors be handled in c++?

1140

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