The factory method design pattern is a creational design pattern that defines an interface or an abstract class for creating an object, but lets the subclasses decide which class to instantiate¹. The factory method pattern allows a class to defer the instantiation to one or more concrete subclasses¹.

The syntax for the factory method design pattern in Java can be summarized as follows:

• Define an interface or an abstract class that declares a factory method for creating an object. This is called the Creator².

• Implement the interface or the abstract class in one or more concrete subclasses. These are called Concrete Creators². Each subclass overrides the factory method to return a different type of object. This is called the Product².

• Define an interface or an abstract class that represents the type of object that the factory method creates. This is called the Product².

• Implement the interface or the abstract class in one or more concrete subclasses. These are called Concrete Products². Each subclass represents a different type of object that can be created by the factory method.

• Use the factory method in the Creator to create and return an object of the Product type. The client code does not need to know the concrete type of the object, as long as it conforms to the Product interface or abstract class.

Here is an example of using the factory method design pattern in Java: