Practice Deque Interface (15.4.2) - Collections and Generics

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6 sample questions

Question 1.
What does the Deque interface allow you to do?
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Think of adding to the front and back.
Question 2.
Name one method of the Deque interface.
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These methods handle element addition and removal.
3Question 3.
Which of the following methods is NOT part of the Deque interface?
- addFirst()
- addMiddle()
- removeFirst()
- removeLast()
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Think about methods that handle the ends of the collection.
4Question 4.
True or False: A Deque can only be accessed from one end.
- True
- False
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Recall the features of FIFO and LIFO.
Question 5.
Create a Java program that uses a Deque to simulate a simple undo feature for a text editor where actions can be pushed and popped.
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Consider how user actions can be stored in a Deque.
Question 6.
Design a queue system using Deque where high priority tasks are accessed first but regular ones need to wait. How would you manage this?
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Think about task arrangements in a real-life scenario.

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