8.1 - What Are Collections?
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Practice Questions
Test your understanding with targeted questions
What are collections in Java?
💡 Hint: Think about how they manage multiple objects.
Why are collections preferred over arrays?
💡 Hint: Consider fixed vs. dynamic sizes.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does a List in Java allow that a Set does not?
💡 Hint: Think about how you access elements in both.
True or False: Collections can store objects of different types.
💡 Hint: Reflect on types of objects in collections.
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Challenge Problems
Push your limits with advanced challenges
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.
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.
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Reference links
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