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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