Practice Constructor Injection (19.3.1) - Dependency Injection and Inversion of Control

Practice: Constructor Injection

Lesson 19.3.1Dependency Injection and Inversion of Control

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8 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is Constructor Injection?
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Think about how objects get their required components.
Question 2.
Give an example of Constructor Injection in Java.
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Consider class instantiation.
3Question 3.
What is the main advantage of Constructor Injection?
- Increased coupling
- Loose coupling
- Tighter control
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Think about how dependencies are managed in an application.
4Question 4.
True or False: Constructor Injection makes testing more difficult.
- True
- False
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Consider how changes in dependencies affect testing.
Question 5.
Consider a classroom application where a Teacher needs a Classroom. Design these classes using Constructor Injection and explain how this aids in flexibility.
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Focus on how changing dependencies impact class behavior.
Question 6.
Evaluate a scenario in which Constructor Injection might lead to too many parameters in a constructor. Suggest a solution to manage complex dependencies.
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Think about how classes could be refactored for better management.

4 more questions in this section. Enroll free to practise them all.