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
Define a list that holds integer values using Java generics.
💡 Hint: Think about how to specify the type in the collection.
Question 2
Easy
What would happen if you try to add a string to a List
💡 Hint: Consider the type safety principle of generics.
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 does List<String> list = new ArrayList<>(); accomplish?
- Creates a list for strings
- Creates a list for integers
- Creates a generic list that accepts any type
💡 Hint: Consider what data types are allowed in the list.
Question 2
True or False: Generics allow for type safety in Java before runtime.
- True
- False
💡 Hint: Think about when types are checked in the code.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Create a generic method that swaps two elements in an array. What will be your method signature?
💡 Hint: Consider how you'd swap values in a basic array before applying generics.
Question 2
How would you define a generic class that can store two elements of any type?
💡 Hint: Think about how to accommodate two different types in the same class.
Challenge and get performance evaluation