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 does == compare in Java?
💡 Hint: Think about what `==` really checks between two variables.
Question 2
Easy
What is the default behavior of .equals()?
💡 Hint: Recall how objects are treated in memory.
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 the == operator check when applied to objects?
- Content equality
- Reference equality
- Both
💡 Hint: Think about what it means to point to the same object.
Question 2
Is s1.equals(s2) true if s1 and s2 are two different objects with identical attributes?
- True
- False
💡 Hint: Consider how equality is defined without overriding.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Create a Book class and implement equals() so that two books are considered equal if they have the same title and author.
💡 Hint: What attributes must you compare to ensure equality?
Question 2
Imagine a software application that tracks student records. How would you ensure that two student objects denote the same student when compared?
💡 Hint: What unique attributes can reliably signify the same person?
Challenge and get performance evaluation