Sample implementation of the Abstract Factory design pattern

I am going to create a Bank and Account interface and some concrete classes implementing these interfaces. Here, I also create an abstract factory class, AbstractFactory. I have some factory classes, BankFactory and AccountFactory; these classes extend the AbstractFactory class. I will also create a FactoryProducer class to create the factories.

Let's see this design pattern in the following image:

UML diagram for the Abstract Factory design pattern

Create a demo class, AbstractFactoryPatternMain; it uses FactoryProducer to get an AbstractFactory object. Here, I pass information ...

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