Practice Behavioral Design Patterns (11.5) - Design Patterns in Java

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9 questions

Flashcard drill
3 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
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does the Observer Pattern do?
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Think of subscribing to newsletters.
Question 2.
What is the primary goal of the Strategy Pattern?
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Consider choices in an application.
3Question 3.
What does the Observer Pattern implement?
- One-to-one
- One-to-many
- Many-to-many
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Think about subscriptions.
4Question 4.
True or False: The Strategy Pattern allows algorithms to be switched at runtime.
- True
- False
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Consider the flexibility of choosing methods.
Question 5.
Design a notification system for a social media platform using the Observer Pattern. Explain your design choices.
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Think about the social interactions and notifications.
Question 6.
Implement a Strategy Pattern for a payment system that can switch between credit, debit, and PayPal seamlessly.
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Consider the context and how to present options to users.

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