Introduction to Object-Oriented Programming (OOP) in Java
Published: 2023-09-04 13:40:10

This blog explains the basic concepts related to OOP in Java. 

Let’s get started.

First understand the meaning of OOP: It means Object-Oriented Programming and can be charcaterized as "Data controlling of accessing of code".

## OOPs in Java
	
Since Java is an object-oriented programming language thus, it uses the OOP to ease out the work. Classes and objects comes under the OOP in Java. In order to create a new classes, it is important to use the class keyword. The class definition includes the name of the class, the attributes of the class, and the methods of the class. On the other hand, if you want to create an object of a class, then you are required to make another new keyword. 

**1. Classes and Objects**

Class: In Java, it referes to template which are mainly used in the creation of an object.  It defines the structure (data) and behavior (methods) that objects of the class will exhibit.
Object: An object is nothing but an instance of the class you created before. Please remember, objects have their own unique state which are known as attributes and can perform actions known as methods.
See, the eg.
class Dog {
    String name;
    int age;
    public void bark() {
        System.out.println(name + " says Woof!");
    }
}

**2. Encapsulation**
Encapsulation is the concept which hides the internal details of how an object works, exposing only what's necessary for external interaction. This promotes data integrity and prevents unintended modification of object state.

**3. Modularity and Reusability**
OOP promotes modularity, making it easier to manage codebases by breaking them into smaller, self-contained classes. These classes can be reused in different parts of your program or in other projects, saving development time and effort.

## Benefits of OOP in Java

Java's implementation of OOP offers several advantages:

1. Code Reusability: 
We can reuse the code and save your time.

2. Code Organization: 
OOP promotes a structured and organized approach to software development, making it easier to understand, maintain, and extend codebases.

3. Encapsulation and Data Protection: 
The encapsulation of data within objects helps protect data integrity and prevents unauthorized access.

4.Polymorphism for Flexibility: 
Polymorphism allows for the creation of flexible and extensible code that can work with objects of different types.

5. Abstraction for Complexity Reduction: 
Abstraction helps manage the complexity of large software systems by focusing on essential details while hiding unnecessary intricacies.

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