Practice The Java Collection Hierarchy (8.2) - Chapter 8: Java Collections Framework (Extended Theory)

Practice: The Java Collection Hierarchy

Lesson 8.2Java Collections Framework (Extended Theory)

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9 questions

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4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the difference between List and Set in Java?
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Think about how they're used and their characteristics.
Question 2.
What does the Queue interface represent?
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Recall how tasks are processed in order.
3Question 3.
Which of the following allows duplicates?
- List
- Set
- Map
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Remember the definitions we discussed.
4Question 4.
Is a Map part of the Collection interface?
- True
- False
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Think about its structure.
Question 5.
Create a simple Java application that utilizes at least three different collections to hold data inputs. Discuss how they work together and the rationale behind your choice.
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Focus on the properties of each collection.
Question 6.
Analyze the performance and memory usage of an ArrayList compared to a LinkedList if you were to frequently add and remove items in the middle. Provide recommendations on which to use for different scenarios.
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Gather details from the properties of lists.

5 more questions in this section. Enroll free to practise them all.