What are decorators in Java?

What are decorators in Java?

Decorators in Java are design patterns that allow behavior to be added to individual objects, either statically or dynamically.

Can you give me an example of how to use a decorator in Java?

Sure! Here's a simple example: You can create a Coffee interface and a BasicCoffee class, then a MilkDecorator class that adds milk to the coffee.

How do I implement the MilkDecorator class?

You would create a class MilkDecorator that implements the Coffee interface and holds a reference to a Coffee object. In the cost() method, you would add the cost of milk to the base coffee.

What are the advantages of using decorators?

Decorators provide a flexible alternative to subclassing for extending functionality, allowing you to add responsibilities dynamically.