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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What are collections in Java?
💡 Hint: Think about how they manage multiple objects.
Question 2
Easy
Why are collections preferred over arrays?
💡 Hint: Consider fixed vs. dynamic sizes.
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 a List in Java allow that a Set does not?
- No duplicates
- Ordered entries
- Faster access
💡 Hint: Think about how you access elements in both.
Question 2
True or False: Collections can store objects of different types.
- True
- False
💡 Hint: Reflect on types of objects in collections.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a system to manage a library of books using collections. Identify which collection to use for different tasks like storing book titles, authors, and tracking borrowed books.
💡 Hint: Consider how each type helps with organization and uniqueness.
Question 2
Create a shopping cart application using collections. Which collections would you use for items, prices, and quantities?
💡 Hint: Think about how to efficiently track multiple items with potential duplicates.
Challenge and get performance evaluation