Practice Interfaces (5.5) - Object-Oriented Analysis and Design - Core UML Diagrams
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Interfaces

Practice - Interfaces

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is an interface in object-oriented programming?

💡 Hint: Think about contracts and implementation.

Question 2 Easy

Name one advantage of using interfaces.

💡 Hint: How can they make different classes interchangeable?

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the primary purpose of an interface?

To provide a method implementation
To define a contract of behaviors
To restrict class behaviors

💡 Hint: Remember the role of contracts and implementation.

Question 2

True or False: A class can only implement one interface in Java.

True
False

💡 Hint: Think about how a car can use features from multiple sources.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Create a UML diagram that includes an interface and at least three classes that implement it, ensuring you depict their methods clearly.

💡 Hint: Think of a scenario where these classes operate in a shared environment.

Challenge 2 Hard

Discuss the implications of changing an interface that several classes implement. What design principles should be considered?

💡 Hint: Consider how real-life changes might affect multiple stakeholders.

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Reference links

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