A Java Interface Is An Example Of Abstraction Polymorphism Encapsulation

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A java interface is an example of abstraction polymorphism encapsulation. While encapsulation groups together data and methods that act upon the data data abstraction deals with exposing the interface to the user and hiding the details of implementation. In english it means covering up things to make it secure. Abstraction is used for hiding the unwanted data and gives relevant data. A class which contains the abstract keyword in its declaration is known as abstract class.

Encapsulation in java is a mechanism for wrapping the data variables and code acting on the data methods together as a single unit. Your polymorphism example is merely method overloading and thats not actually what the object oriented folks mean by polymorphism. In java abstraction is achieved using abstract classes and interfaces. Python and java are multi paradigm high level programming languages that means they support both oop and procedural programming.

Start studying java abstraction interface polymorphism encapsulation and inheritance. Oophas four major building blocks which are polymorphism encapsulation abstraction and inheritance. Abstract classes may or may not contain abstract methods ie methods without body public void get. See thislast paragraph of the introduction in particular.

Similarly in coding we do it by using classes and. Of the two real world examples the automobile more completely illustrates the power of object oriented design. Encapsulation means hiding the code and data into a single unit to protect the data from outside. Encapsulation is data hiding information hiding while abstraction is detail hiding implementation hiding.

Encapsulation is one of the four fundamental oop concepts. Oop has four major building blocks which are polymorphism encapsulation abstraction and inheritance. There are other programming paradigms such as procedural programming in which codes are written in sequentially. They are the four pillars of java.

In java encapsulation solves the problem of the implementation level. Polymorphism allows you to create clean sensible readable and resilient code. The other three are inheritance polymorphism and abstraction. They mean how you can have a interface that exposes a method and the various classes that implement that interface can implement the method to have different behaviors.