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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define an interface in your own words.
💡 Hint: Think about what is required to fulfill a contract.
Question 2
Easy
Mention one advantage of using interfaces.
💡 Hint: Consider how classes can share behaviors.
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 is an interface in Java?
- A type of class
- A collection of abstract methods
- A data type
💡 Hint: Remember, interfaces are like contracts.
Question 2
True or False: An interface can have method bodies.
- True
- False
💡 Hint: Think about the nature of abstract methods.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Create an interface named 'Vehicle' that has an abstract method 'move()'. Then, create two classes 'Car' and 'Bike' that implement 'Vehicle'.
💡 Hint: Focus on defining both the interface and the implementing classes properly.
Question 2
Explain how interfaces promote software design principles such as abstraction and polymorphism.
💡 Hint: Consider how this separation of concern affects class design.
Challenge and get performance evaluation