Practice Behavioral Design Patterns - 11.5 | 11. Design Patterns in Java | Advance Programming In Java
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does the Observer Pattern do?

💡 Hint: Think of subscribing to newsletters.

Question 2

Easy

What is the primary goal of the Strategy Pattern?

💡 Hint: Consider choices in an application.

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 Observer Pattern implement?

  • One-to-one
  • One-to-many
  • Many-to-many

💡 Hint: Think about subscriptions.

Question 2

True or False: The Strategy Pattern allows algorithms to be switched at runtime.

  • True
  • False

💡 Hint: Consider the flexibility of choosing methods.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a notification system for a social media platform using the Observer Pattern. Explain your design choices.

💡 Hint: Think about the social interactions and notifications.

Question 2

Implement a Strategy Pattern for a payment system that can switch between credit, debit, and PayPal seamlessly.

💡 Hint: Consider the context and how to present options to users.

Challenge and get performance evaluation