The factory method design pattern and the abstract factory design pattern are both creational patterns. Creational patterns are used to abstract object creation and hide the intricacies of how the ...

The design pattern template method is good example of using abstract ... Only functional interfaces can use the lambda feature in Java. Abstract classes with only one abstract method cannot ...

We discuss some of the most common design ... crux of the pattern is the abstract Vehicle class; it keeps track of the factories and defines the signature for the manufacture() method: package ...