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 1265

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

4 2231

What are the static members and static member functions?

1 1358

What is the difference between shallow copy and deep copy?

1 1345

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

1 1516

Which operator can not be overloaded in C++?

1 1242

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 2052

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

1 885

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

1 917

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

2 2193

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

1 1157

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

1 942

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

1 1161

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

1 1048

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

1 1058

Un-Answered Questions { C++ }

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

1096

Why do we use constructor?

1060

What are the effects after calling the delete this operator ?

1058

What is c strings syntax?

1147

What is polymorphism and example?

1050

What is c++ library?

1040

Write a java applet that computes and displays the squares of values between 25 and 1 inclusive and displays them in a TextArea box

2621

which of the following is not an secondary constant a) array b) real c) union

1806

What is the use of class in c++?

1086

What is meant by stl in c++?

1151

What language does google use?

1173

Explain what are accessor methods?

1125

What is Destructor in C++?

1194

Write a c program for binary addition of two 8 bit numbers.

4124

What problems might the following macro bring to the application?

1057

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