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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is Dependency Injection?
💡 Hint: Think about how classes manage their required objects.
Question 2
Easy
What is Constructor Injection?
💡 Hint: Focus on how dependencies are passed when creating an object.
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 the primary benefit of Dependency Injection?
- Tight coupling
- Loose coupling
- Easier debugging
💡 Hint: Think about how DI changes class relationships.
Question 2
Using Constructor Injection allows for easier testing.
- True
- False
💡 Hint: Consider the testing advantage of decoupled classes.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
How would you refactor existing tightly coupled code to use manual Dependency Injection? Provide both before and after examples.
💡 Hint: Look for instances where classes instantiate their dependencies.
Question 2
Design a small Java application that uses manual DI for a scenario like a library management system. Include a Book, a Library, and a Borrower.
💡 Hint: Focus on how each class can receive its dependencies through constructors.
Challenge and get performance evaluation