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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the main advantage of using Generics in Java?
💡 Hint: Think of runtime errors related to types.
Question 2
Easy
Why is it preferable to declare a List as List instead of ArrayList?
💡 Hint: Consider what happens when the implementation changes.
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 is the primary purpose of using Generics in Java?
- Enhance memory usage
- Increase type safety
- Improve runtime speed
💡 Hint: Think about errors you want to avoid.
Question 2
True or False: Using raw types can lead to ClassCastException.
- True
- False
💡 Hint: Consider what raw types actually do.
Solve 3 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Write a generic method to find the maximum element in an array of any type.
💡 Hint: Consider how you would compare different elements.
Question 2
Given a List of strings, write a function that uses Streams to convert all elements to uppercase.
💡 Hint: Think about the mapping function and how streams work.
Challenge and get performance evaluation