uml - Can a class extend an abstract class and implement an interface at the same time? (java) - Stack Overflow

If I have for example a class Foo and also an abstract class Bar and an interface Fizz, can the class implement both in its declaration? Or should the interface first be implemented in the abstract

Java Interface and Abstract Class Tutorial With Examples

design patterns - Difference between Java implementation and UML specification wrt interfaces and abstract classes - Stack Overflow

design patterns - Difference between Java implementation and UML specification wrt interfaces and abstract classes - Stack Overflow

Groovy Language Documentation

In an UML diagram, when should a class be abstract? - Stack Overflow

uml - Abstract/concrete class separation at sequence diagram - Stack Overflow

clean code - How to use the Decorator pattern to add little functionality to big objects? - Software Engineering Stack Exchange

JAVA FINAL 2 Flashcards

uml - accessing other classes from an interface class - Stack Overflow

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design principles - Is Inheritance as Specialization hurt? And how can it be fixed? - Software Engineering Stack Exchange

The UML 2 class diagram - IBM Developer

java - How to present abstract class which has relationship with interface class in class diagram - Stack Overflow