Practice Common Interfaces and Their Uses - 8.3 | Chapter 8: Java Collections Framework (Extended Theory) | JAVA Foundation Course
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8.3 - Common Interfaces and Their Uses

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the main characteristic of a List?

💡 Hint: Think about the example of a shopping list.

Question 2

Easy

Name one implementation of the Set interface.

💡 Hint: Recall we discussed HashSet earlier.

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

Which interface allows duplicate entries?

  • List
  • Set
  • Map

💡 Hint: Think about where you might see duplicate items.

Question 2

True or False: A Set allows duplicate elements.

  • True
  • False

💡 Hint: Recall the definition of a Set.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

You need to create a web application that allows users to register with unique usernames, store their email addresses, and maintain a list of their purchases. Which collection types would you use for each task and why?

💡 Hint: Think about preventing duplicates and maintaining order.

Question 2

In a scenario where a sports league wants to keep track of player statistics while ensuring no two players share the same ID, which collection would be best for player IDs and the statistics? Explain your reasoning.

💡 Hint: Think about how to map players to data while ensuring no duplicates.

Challenge and get performance evaluation