C++ Programming - OOPS Concepts - Discussion

It's a part of Association, where two classes communicate each other but don't have a relationship and inside Association the form of Aggregation where two classes objects can communicate each other but one class denotes as owner and one class denotes its part for example Department has lecturers if department object destroys lecturers will exist another example Address can relate to one and more entity if people those are living on that address leave the address so the address will exist and inside aggregation, the form is composition, whether one entity lifecycle depends on another entity, means like if House and Room relationship if the house will destroy room will also destroy this called composition.

Inheritance will acquire one class properties, but here the question is not about the class, it's about an object inside a class, so the answer is composition.

I don't know about composition please tell me, anyone, in detail about composition.

Composition is a HAS-A relationship. One class can hold the object of another class and also manages its life-cycle. So we can class A has a B class object.

Inheritance is IS-A relationship. Derived class is derived from the base class. So we can say that derived class is a base class (since it holds all the properties which is in base class).

We establish composition (HAS-A) relation between classes if one object cannot exist without another object.

For ex-Student/Employee/anyone cant exist without Address.
Say Student HAS-A address
& Employee HAS-A address
class Address{}
class Student{
Address a=new Address();
}

Similarly
class Employee{
Address a=new Address();
}

The car has an engine is a composition here we are talking about some part of the car.

The car is a 4wheeler is an inheritance.

Can anyone explain me relationship between inheritance and composition?

Is composition similar to inheritance?

Why you answering as composition instead of inheritance?

What is Composition?