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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the difference between FIFO and LIFO?
💡 Hint: Think about how a queue and a stack work.
Question 2
Easy
Give one primary use of a PriorityQueue.
💡 Hint: Consider situations like emergency services.
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 type of order does a PriorityQueue maintain?
- Alphabetical
- Natural or Custom Order
- Random Order
💡 Hint: Think about how tasks are ordered in terms of urgency.
Question 2
True or False: An ArrayDeque can be used for both FIFO and LIFO operations.
- True
- False
💡 Hint: Recall the structure of the ArrayDeque.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Using Java, implement a program to simulate a customer service system with a PriorityQueue that queues customers by their service type (e.g., urgent, normal, low priority).
💡 Hint: Consider creating a Customer class with a field for priority.
Question 2
Develop a Java program that reverses strings using an ArrayDeque as a stack. Input a string and display the reversed output.
💡 Hint: Think about how the Last In, First Out principle works.
Challenge and get performance evaluation