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
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the benefit of using generics in collections?
💡 Hint: Think about errors that might happen at runtime.
Question 2
Easy
What does a bounded type do?
💡 Hint: What type constraints do you recall?
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
Why should you avoid raw types like List?
- It is not allowed in Java
- They risk runtime exceptions
- They are outdated
💡 Hint: Consider what problems arise when you mix types.
Question 2
True or False: Wildcards can provide a way to handle multiple types in generics.
- True
- False
💡 Hint: Think about methods that take lists of various data types.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Implement a generic class that adds three different types of numbers, while ensuring type safety during addition. Include methods to return the total and the average of those three numbers.
💡 Hint: Think about how to ensure the types are compatible for arithmetic operations.
Question 2
Write a method that takes a List of a bounded type and calculates the maximum value. Ensure it runs on any numeric type.
💡 Hint: Remember to utilize a loop and compare values.
Challenge and get performance evaluation