What is difference between abstraction and encapsulation?
Abstraction is the method of hiding the unwanted information. Whereas encapsulation is a method to hide the data in a single entity or unit along with a method to protect information from outside. We can implement abstraction using abstract class and interfaces.
What is the difference between abstraction and inheritance?
Abstraction is an OOP concept that hides the implementation details and shows only the functionality to the user. In contrast, Inheritance is the methodology of creating a new class using the properties and methods of an existing class. Thus, this reflects the main difference between abstraction and inheritance.
What is inheritance polymorphism abstraction and encapsulation What are the difference between them?
Polymorphism allows program code to have different meaning or functions while encapsulation is the process of keeping classes private so they cannot be modified by external codes.
Can you have polymorphism without inheritance?
Real polymorphism in General can not be acheived without inheritance. Languages that are not object-oriented provide forms of polymorphism which do not rely on inheritance (i.e parametric polymorphism).
What is real life example of encapsulation?
School bag is one of the most real examples of Encapsulation. School bag can keep our books, pens, etc. Realtime Example 2: When you log into your email accounts such as Gmail, Yahoo Mail, or Rediff mail, there is a lot of internal processes taking place in the backend and you have no control over it.
What is the difference between abstraction and encapsulation give a real life example?
Encapsulation means hiding the internal details or mechanics of how an object does something. Abstraction is outer layout in terms of design. For Example: – Outer Look of a iPhone, like it has a display screen. Encapsulation is inner layout in terms of implementation.
Can a final class be inherited?
If a class is marked as final then no class can inherit any feature from the final class. You cannot extend a final class. If you try it gives you a compile time error.
What is the difference between inheritance and overriding methods?
Inheritance enable us to define a class that takes all the functionality from parent class and allows us to add more. Method overriding occurs simply defining in the child class a method with the same name of a method in the parent class .
Does polymorphism break encapsulation?
Yes. Since it gives the derived class access to members of the base class (depending on what language and which kind of inheritance) it is said that it breaks encapsulation. IMHO this is only if you are clinging to encapsulation in the strictest terms.
What is the difference between abstraction and encapsulation?
Encapsulation often gets confused with Abstraction because they both seem to be “hiding something”. Encapsulation is mainly about two things: Keeping data and the code that operates on that data all in one place (“capsule”), and Restricting access to that data.
What is the encapsulation of data?
Encapsulation is a method of making a complex system easier to handle for end users. The user need not worry about internal details and complexities of the system. Encapsulation is a process of wrapping the data and the code, that operate on the data into a single entity.
What are the advantages of using encapsulation?
Encapsulation makes unit testing easy. It allows you to reduce coupling of modules and increases cohesion inside a module as all piece of one thing are encapsulated in one place. Encapsulation helps you to change a part of code without affecting other parts of the code.
What is encapsulation in PHP?
Encapsulation is a process of wrapping the data and the code, that operate on the data into a single entity. You can assume it as a protective wrapper that stops random access of code defined outside that wrapper.