Method and Class in Java

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 Methods and classes are fundamental concepts in object-oriented programming (OOP) and are used to create reusable and modular code. A method is a block of code that performs a specific task, and a class is a blueprint for creating objects that encapsulate data and behavior. Let's take a closer look at these two concepts.

Methods:

In OOP, methods are functions that are associated with a class and can be called on an object of that class. Methods can access and modify the object's data and can be used to implement the behavior of the object. For example, a "print" method in a "Car" class can be used to print out the car's current speed, color, and other attributes.

Methods can be classified into two categories: instance methods and class methods. An instance method is a method that is called on an object of a class and can access and modify the object's data. A class method, on the other hand, is a method that is called on a class itself and does not have access to an object's data.

Classes:

A class is a blueprint for creating objects that encapsulate data and behavior. The data and behavior are defined as attributes and methods, respectively. A class can be thought of as a user-defined data type that can be used to create objects of that type. For example, a "Car" class can be used to create objects that represent different cars.

Classes can also be used to implement inheritance, where one class can inherit attributes and methods from another class. This allows for code reuse and can simplify the implementation of complex systems. For example, a "Truck" class can inherit attributes and methods from the "Vehicle" class, which can in turn inherit from a more general "Transportation" class.

In summary, methods and classes are essential concepts in OOP that allow for the creation of reusable and modular code. Methods are functions associated with a class that perform specific tasks, and classes are blueprints for creating objects that encapsulate data and behavior.

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