We discuss some of the most common design patterns in Java and how they ... In the Abstract Factory Pattern, however, the if-else block of the above example would be replaced by multiple factory ...

Abstract classes and interfaces in Java serve fundamentally different ... it’s usually better to use an interface. The design pattern template method is good example of using abstract classes.

Using the wrong design pattern for a use case can make your code more complicated, not less. Another good example in the JDK ... Rafael del Nero is a Java Champion and Oracle Ace, creator of ...