Practice Linkedhashset (15.3.2.2) - Collections and Generics

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10 questions

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6 sample questions

Question 1.
What is a LinkedHashSet?
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Think of how it differs from a HashSet.
Question 2.
How do you create a LinkedHashSet in Java?
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Look for the class name in the Java documentation.
3Question 3.
What does a LinkedHashSet maintain that a HashSet does not?
- Speed
- Insertion Order
- Duplicates
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Think about how elements are accessed in different structures.
4Question 4.
True or False: A LinkedHashSet allows duplicate elements.
- True
- False
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Reflect on the definition of a Set.
Question 5.
Design a simple Java program that uses a LinkedHashSet to store the names of students as they enroll in a class. Ensure that the order of enrollment is preserved and no duplicates are added.
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Think of a method to ensure names are unique during input.
Question 6.
Implement a scenario where you have to retrieve and print students in the order they were added, including a feature to ignore duplicate entries.
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Utilize an enhanced for-loop for retrieving elements efficiently.

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