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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What method must a class implement to be Comparable?
💡 Hint: Think about the method name and its purpose.
Question 2
Easy
What does the compare method in a Comparator return?
💡 Hint: Recall the three possible outcomes of comparisons.
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
Which interface is used for defining the natural ordering of a class?
- Comparable
- Comparator
- List
💡 Hint: Think about the interface that modifies the object itself.
Question 2
True or False: A Comparator can be used to define multiple sorting criteria.
- True
- False
💡 Hint: Reflect on what you need if you want to compare in different ways.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Create a Student class and implement both Comparable and a Comparator that sorts by name and marks.
💡 Hint: Think of how you would structure the class and implement the two interfaces.
Question 2
Consider a scenario where you have a list of employees that you want to sort first by department and then by salary. How would you implement this?
💡 Hint: Remember that you can chain comparators together for multiple sorting criteria.
Challenge and get performance evaluation