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OOPS Interview Questions
Questions Answers Views Company eMail

What are virtual functions?

2 5358

What is friend function?

Wipro,

12 24584

What is a scope resolution operator?

HP, IBS,

5 17511

What do you mean by inheritance?

IBS,

2295

What is abstraction?

9 13621

What is polymorphism? Explain with an example.

48 132858

What is encapsulation?

TCS,

17 22443

What do you mean by binding of data and functions?

3 10372

What is function overloading and operator overloading?

4 16743

What is virtual class and friend class?

IBS, Intel, Wipro,

5 35974

What do you mean by inline function?

6 14936

What do you mean by public, private, protected and friendly?

CA,

3 10625

When is an object created and what is its lifetime?

IBM,

4 17546

What do you mean by multiple inheritance and multilevel inheritance? Differentiate between them.

2 14885

Difference between realloc() and free?

HP,

9 26388


Post New OOPS Questions

Un-Answered Questions { OOPS }

What is abstraction in oops?

1042


class type to basic type conversion

2403


what are the ways in which a constructors can be called?

2130


String = "C++ is an object oriented programming language.An imp feature of oops is classes and objects".Write a pgm to count the repeated words from this scenario?

2386


Objective The objective of this problem is to test the understanding of Object-Oriented Programming (OOP) concepts, in particular, on encapsulation. Problem Description Create a program for managing customer’s bank accounts. A bank customer can do the following operations: 1. Create a new bank account with an initial balance. 2. Deposit money into his/her account. 3. Withdraw money from his/her account. For this operation, you need to output “Transaction successful” if the intended amount of money can be withdrawn, otherwise output “Transaction unsuccessful” and no money will be withdrawn from his/her account. Input The input contains several operations and is terminated by “0”. The operations will be “Create name amount”, “Deposit name amount”, or “Withdraw name amount”, where name is the customer’s name and amount is an integer indicating the amount of money. There will be at most 100 bank accounts and they are all created on the first month when the bank is opening. You may assume that all account holders have unique names and the names consist of only a single word. Output The output contains the transaction result of withdrawal operations and the final balance of all customers after some withdrawal and deposit operations (same order as the input). Sample Input Create Billy 2500 Create Charlie 1000 Create John 100 Withdraw Charlie 500 Deposit John 899 Withdraw Charlie 1000 0

2240


What is destructor oops?

1090


How to hide the base class functionality in Inheritance?

1137


Question: Implement a base class Appointment and derived classes Onetime, Daily, Weekly, and Monthly. An appointment has a description (for example, “see the dentist”) and a date and time. Write a virtual function occurs_on(int year, int month, int day) that checks whether the appointment occurs on that date. For example, for a monthly appointment, you must check whether the day of the month matches. Then fill a vector of Appointment* with a mixture of appointments. Have the user enter a date and print out all appointments that happen on that date.

1333


What is difference between polymorphism and inheritance?

1084


What is static in oop?

1079


What is overloading in oop?

1006


What is class in oop with example?

1097


What is property in oops?

1061


what are the realtime excercises in C++?

2836


What does and I oop and sksksk mean?

1162