19.2.1 - Definition
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Practice Questions
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Define Dependency Injection in your own words.
💡 Hint: Think about how one object uses another.
What is a real-world analogy for Dependency Injection?
💡 Hint: Consider how devices function with required components.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is Dependency Injection?
💡 Hint: Think about what DI helps achieve in programming.
True or False: Dependency Injection increases the complexity of code.
💡 Hint: Consider the overall structure of code with and without DI.
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Challenge Problems
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Imagine you are developing an application that lets users book hotel rooms. Describe how you would implement Dependency Injection to handle services like payment processing and email notifications.
💡 Hint: Think in terms of components interacting and needing external support.
You find that a class is tightly coupled because it directly creates instances of its dependencies. What steps would you take to refactor this class to better utilize Dependency Injection?
💡 Hint: Reflect on how dependency management can change class interactions.
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