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C++ Interview Questions
Questions Answers Views Company eMail

Explain how to initialize a const member data.

1084

When do we use copy constructors?

1141

Explain the benefits of proper inheritance.

1201

Write a program using merge () function to combine the elements of array x[ ] and y[ ] into array z[ ].

1116

Write some differences between an external iterator and an internal iterator? Describe the advantage of an external iterator.

1122

When does a 'this' pointer get created?

1160

What is the real purpose of class – to export data?

1174

What are the various situations where a copy constructor is invoked?

1182

What are the advantages of using friend classes?

1212

Write some differences between an external iterator and an internal iterator?

1095

What is pure virtual function? Or what is abstract class?

1127

Differentiate between an external iterator and an internal iterator? What is the advantage of an external iterator.

1107

What is type of 'this' pointer?

1128

What happens when you make call 'delete this;'?

1167

Differentiate between an external iterator and an internal iterator?

1061


Un-Answered Questions { C++ }

Why do we need oop?

1285


write a program to find 2^n+1 ?

2137


Describe new operator?

1218


What operators can you overload in c++?

1100


Why do we use using namespace std in c++?

1133


Is c++ free?

1160


daily Routine of father

1468


What is &x in c++?

1051


Write a program to find the Fibonacci series recursively.

1132


What is #include iomanip?

1068


Write a program that can take input from 3 to 8 and calculate the average?

1069


What is pure virtual function?

1115


Can we get the value of ios format flags?

1190


There is a base class sub, with a member function fnsub(). There are two classes super1 and super2 which are sub classes of the base class sub.if and pointer object is created of the class sub which points to any of the two classes super1 and super2, if fnsub() is called which one will be inoked?

1074


A prime number is a number which is divisible only by itself and 1. Examples of the first few primes are 2, 3, 5, 7, 11. Consider writing a program which can generate prime numbers for you. Your program should read in and set a maximum prime to generate and a minimum number to start with when looking for primes. This program should be able to perform the following tasks: 1. Read the maximum number from user (keyboard input) to look for primes. The program should not return any primes greater than this number. 2. Read the minimum number from user (keyboard input) to look for primes. The program should not return any primes less than this number. 3. Generate and print out every prime number between the maximum prime and minimum number specified by the user.

2256