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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the advantage of using ArrayList over a linked list?
💡 Hint: Consider how data is stored in an array.
Question 2
Easy
Why should you avoid premature synchronization on collections?
💡 Hint: Think about what synchronization does.
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 collection is more suitable for frequent read operations?
- ArrayList
- CopyOnWriteArrayList
- HashMap
💡 Hint: Consider read versus write frequencies.
Question 2
True or False: Synchronizing collections always improves their performance.
- True
- False
💡 Hint: Think about when synchronization might be beneficial.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Implement a Java program that uses both HashMap and TreeMap. Compare their performance with different data sets.
💡 Hint: Focus on different loads and types of data.
Question 2
Design a generic class that manages a collection of items, including methods for adding and retrieving items with wildcards and demonstrate its use.
💡 Hint: Make sure to implement wildcards correctly.
Challenge and get performance evaluation