<ul><li>Abstraction in Java comes in two flavors: abstract classes and interfaces.</li><li>Design patterns, such as the Factory Pattern, use abstraction to decouple code and make it flexible.</li><li>Abstraction allows for the use of abstract classes, which define the skeleton of a method and let subclasses fill in specific steps.</li><li>Best practices in abstraction include following the Interface Segregation Principle and favoring composition over inheritance.</li></ul>

Abstraction in Java - Best Practices

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