Java Object-Oriented Programming


 Java Object-Oriented Concept

Currently, Java is one of the most popular object-oriented programming languages used by software developers. Accordingly, we make a qualitative inquiry about the object-oriented concept of Java.

Why do we need object-oriented programming?


In the past, length coding was done between single files. Accordingly, codes with a large number of rows are seen. Thus, it was a difficult task to identify the errors due to the large number of lines printed while coding. Also, it was not an easy task. Accordingly, the maintenance cost was greater than the initial cast.  




Due to these problems, later as a solution to these, it was decided to divide the code into small parts and take those parts separately as individual parts to carry out the coding process. in this way, the separately processed parts are connected to the main. Thus, the subsequent changes could be whitened easily.

Among the benefits of this, the grant benefit is the ability to reuse codes. this means that the same code can be used in another program.

What are the key concepts of Java Object-Oriented Programming?

01)  Object

The collection of properties and functions that an object can have is called an object.

02) class

A collection of objects with similar properties and functions is called a class.



03) Inheritance

Inheritance means, in simple words, inheriting the same things
 from one class to another class.
Accordingly, the child class inherits from the parent class. in other words, the subclass is formed from the superclass.



04) Polymorphism

A single method or operator might have many variants thanks to polymorphism. This makes it feasible to develop more adaptable and dynamic applications since different objects can respond to the same message in various ways.


05) Encapsulation


The act of encapsulating an item involves concealing its data and behavior from the outside world. This preserves the integrity of the data and enables the implementation of an object to be changed without having an impact on other program elements.



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