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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is an Observer in the Observer Pattern?
💡 Hint: Think about who needs to be informed of updates.
Question 2
Easy
What does the Subject do?
💡 Hint: Consider what action it performs for its Observers.
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 main purpose of the Observer Pattern?
- To handle object creation
- To notify observers of state changes
- To compose objects
- None of the above
💡 Hint: Think about what happens when an event occurs.
Question 2
True or False: In the Observer Pattern, the Subject is tightly coupled with the Observers.
- True
- False
💡 Hint: Consider the benefits of this design pattern.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design an Observer Pattern implementation for a stock market application where stocks' prices change frequently. Include multiple Observers that react to price updates.
💡 Hint: Consider how the investors would want to receive their updates.
Question 2
Analyze the potential drawbacks of using the Observer Pattern in an application with thousands of Observers. What design considerations would you keep in mind?
💡 Hint: Think about how to manage the notification load effectively.
Challenge and get performance evaluation