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 an immutable object?
💡 Hint: Think about how strings work in Java.
Question 2
Easy
Why are immutable objects considered thread-safe?
💡 Hint: Consider what happens when multiple threads access the same object.
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 it mean for an object to be immutable?
- It can change states
- It cannot be changed after creation
- It is always static
💡 Hint: Recall the definition of immutable.
Question 2
Immutable objects are thread-safe. True or False?
- True
- False
💡 Hint: Consider how they behave in multithreaded contexts.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Create an immutable class that models a product with properties like name and price. How would you handle an update to the product's price?
💡 Hint: Consider how you would extend the class with a method that returns the new instance.
Question 2
Discuss how the use of immutable objects can lead to improved performance in certain cases within a multi-threaded application.
💡 Hint: Reflect on how data is shared in multithreaded programming.
Challenge and get performance evaluation