Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the purpose of the Singleton Pattern?
💡 Hint: Think about when you need a single point of control.
Question 2
Easy
How does the Observer Pattern function?
💡 Hint: Consider situations where one action affects multiple listeners.
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 does the Singleton Pattern ensure?
- Multiple instances of a class
- Only one instance of a class
- No instances of a class
💡 Hint: Think about a logging service that should only have one instance.
Question 2
The Observer Pattern is primarily used for what?
- True
- False
💡 Hint: Remember how alerts are sent to multiple listeners.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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.
Question 2
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.
Challenge and get performance evaluation