19.2.2 - Real-world Analogy
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is Dependency Injection?
💡 Hint: Think of the television remote needing batteries.
Why is reducing tight coupling important in software design?
💡 Hint: Consider how changing batteries can make a remote work better.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What does Dependency Injection allow an object to do?
💡 Hint: Think about how the remote gets its power.
True or False: Tight coupling makes a system easier to maintain.
💡 Hint: Recall how the remote would be affected by battery changes if it created its own batteries.
Get performance evaluation
Challenge Problems
Push your limits with advanced challenges
Design a small application in Java that utilizes Dependency Injection to manage a class representing a Smart Light and its required power source.
💡 Hint: Think about how you would approach creating a light that could use different types of energy sources.
Describe a situation where tight coupling could severely impact the maintainability of an application. Provide a solution that uses Dependency Injection.
💡 Hint: Consider the pros and cons of making every class responsible for creating its own dependencies.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.