What are some common design patterns in Java?

What are some common design patterns in Java?

Some common design patterns in Java include Singleton, Factory, Observer, and Strategy patterns. Would you like to know more about any specific one?

Can you explain the Singleton pattern?

The Singleton pattern ensures that a class has only one instance and provides a global point of access to it. It's often used for managing shared resources.

How does the Factory pattern work?

The Factory pattern defines an interface for creating objects but allows subclasses to alter the type of objects that will be created. This promotes loose coupling.

What about the Observer pattern?

The Observer pattern allows an object, known as the subject, to maintain a list of its dependents, called observers, and notify them of state changes, typically used in event handling.