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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define what an interface is.
💡 Hint: Remember, it’s about enforcing certain behaviors.
Question 2
Easy
Can an abstract class contain concrete methods?
💡 Hint: Think about shared behavior between classes.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
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!
Question 2
Is it possible for a class to implement multiple interfaces?
- True
- False
💡 Hint: Think of different roles a class might play.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a simple Java application using both an interface and an abstract class. Explain your design decisions.
💡 Hint: Consider what common traits animals share.
Question 2
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.
Challenge and get performance evaluation