Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the purpose of generics in Java?
💡 Hint: Think about why we avoid type casting.
Question 2
Easy
Explain what a generic class is.
💡 Hint: Consider the Box<T> example.
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 benefit of using generics?
- A. Type Safety
- B. Code Reusability
- C. Both A and B
💡 Hint: Think about the advantages of type-safe code.
Question 2
True or False: Wildcards in generics only allow you to use types that share a common superclass.
- True
- False
💡 Hint: Remember that wildcards can also be unbounded.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Write a generic class that implements a stack with push and pop methods while ensuring type safety.
💡 Hint: Think about how a stack operates and ensure you apply generics.
Question 2
Create a method using wildcards to print elements from a list without knowing the type beforehand.
💡 Hint: Focus on using the wildcard and benefit from flexibility.
Challenge and get performance evaluation