27.6 - Real-World Examples of Design Patterns
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Practice Questions
Test your understanding with targeted questions
What is the purpose of the Singleton Pattern?
💡 Hint: Think about when you need a single point of control.
How does the Observer Pattern function?
💡 Hint: Consider situations where one action affects multiple listeners.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the Singleton Pattern ensure?
💡 Hint: Think about a logging service that should only have one instance.
The Observer Pattern is primarily used for what?
💡 Hint: Remember how alerts are sent to multiple listeners.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Design a basic logging system in code, ensuring it uses the Singleton Pattern. Provide methods for logging at different severity levels.
💡 Hint: Think about how to enforce the single instance control.
Implement a simple UI with components that use the Observer and Composite patterns. How will state changes be reflected in observers?
💡 Hint: Consider the update mechanism for notifying observers.
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