11.6. Interface vs Abstract Class

Try these first

1. 1.

   Define what an interface is.

   Hint

   Remember, it’s about enforcing certain behaviors.

2. 2.

   Can an abstract class contain concrete methods?

   Hint

   Think about shared behavior between classes.

3. 3.

   What can an abstract class contain?

   • Only abstract methods
   • Both abstract and concrete methods
   • Only concrete methods

   Hint

   Think of concrete methods as those that have their implementation!

4. 4.

   Is it possible for a class to implement multiple interfaces?

   • True
   • False

   Hint

   Think of different roles a class might play.

5. 5.

   Design a simple Java application using both an interface and an abstract class. Explain your design decisions.

   Hint

   Consider what common traits animals share.

6. 6.

   Explain a scenario where using an interface is more beneficial than using an abstract class, including an example.

   Hint

   Think about flexibility and what interface allows.