Why java is called object oriented?

Java is called object-oriented because it is based on the object-oriented programming (OOP) paradigm. Object-oriented programming is a programming paradigm that is based on the concept of "objects", which are instances of classes, and the interactions between those objects.

In Java, every piece of data and every function is encapsulated inside an object, which is an instance of a class. Classes define the properties and behaviors of an object, and objects are created from those classes.

Java provides several key features that support object-oriented programming, such as:

Inheritance: Allows classes to inherit properties and behaviors from parent classes, reducing the need for repetitive code and making it easier to create new classes.

Polymorphism: Allows objects to take on multiple forms, which allows for more flexibility in creating and using objects.

Encapsulation: Allows objects to hide their internal details and behavior, making it easier to maintain and extend code.

Abstraction: Allows developers to focus on the essential features of an object, without needing to know the underlying implementation details.

Java also supports other OOP concepts such as interfaces, abstract classes, and packages. All these features of java make it an object-oriented programming language and that is why it is called so. With the help of these features, Java allows developers to design and build complex, modular and reusable code, which makes it easier to maintain and extend, and is also more efficient and reliable.