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Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does a reference variable do?
💡 Hint: Think about what allows us to interact with objects.
Question 2
Easy
Define a constructor.
💡 Hint: How is it related to the class?
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 a reference variable point to?
- A method
- A variable
- An object
💡 Hint: Think about what allows interaction with this object.
Question 2
True or False: A constructor has a return type.
- True
- False
💡 Hint: Consider the signature of a constructor.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Create a class Book with attributes title and author. Write a constructor to initialize these fields and demonstrate creating an instance of Book.
💡 Hint: This involves defining attributes and initializing them within the constructor.
Question 2
Compare two objects of class Employee using both == and .equals(). Explain the differences in your output.
💡 Hint: You will need to override `.equals()` in the Employee class.
Challenge and get performance evaluation