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Java Data Structures
course content

Course Content

Java Data Structures

Java Data Structures

1. Basic Data Structures
Introduction to Data StructuresList and ArrayListChallenge (ArrayList)CRUD operationsLinkedListImplementing our LinkedListChallenge (LinkedList)Section 1 Summary
2. Additional Data Structures
QueueDequeQueue PracticeStackChallenge (Deque Practice)Section 2 Summary
3. Map
What is Map?HashMap<>HashMap PracticeMap with Other Data StructuresSection 3 Summary
4. enum & Stream API
enumChallenge (Character Class)Stream APIMethod ReferenceStream PracticeSection 4 Summary

bookSection 2 Summary

Great!

You've completed another section of this quite challenging course. You've written two not-so-simple programs and delved into data structures with the principles of FIFO and LIFO. These are very useful data structures in certain situations. They may not be suitable for every solution, but in cases where you need to iterate from one end of the data structure, Queue and Deque are indispensable.

You're also starting to tackle quite complex and comprehensive practical assignments. Such knowledge can be easily applied in practice, and I can say that the data structures you've learned in this and the previous section are often used in real-world scenarios. I believe you understand how they are applied 🧐.

I've prepared a quiz for you that will help you recall and better internalize everything you've learned.

1. What is the primary principle of a `Queue` data structure?
2. Which Java interface is commonly used to implement a `Queue`?
3. Which of the following is a valid method for adding an element to the front of a `Deque` in Java?
4. What is the purpose of the `pop()` method in the `Stack` class?
5. In Java, what does it mean for a method to be deprecated?
6. What is the primary principle of a `Stack` data structure?
7. What is the purpose of the `offer()` method in the `Queue` interface?
8. In a `Queue`, what does the `poll()` method do?
What is the primary principle of a `Queue` data structure?

What is the primary principle of a Queue data structure?

Select the correct answer

Which Java interface is commonly used to implement a `Queue`?

Which Java interface is commonly used to implement a Queue?

Select the correct answer

Which of the following is a valid method for adding an element to the front of a `Deque` in Java?

Which of the following is a valid method for adding an element to the front of a Deque in Java?

Select the correct answer

What is the purpose of the `pop()` method in the `Stack` class?

What is the purpose of the pop() method in the Stack class?

Select the correct answer

In Java, what does it mean for a method to be deprecated?

In Java, what does it mean for a method to be deprecated?

Select the correct answer

What is the primary principle of a `Stack` data structure?

What is the primary principle of a Stack data structure?

Select the correct answer

What is the purpose of the `offer()` method in the `Queue` interface?

What is the purpose of the offer() method in the Queue interface?

Select the correct answer

In a `Queue`, what does the `poll()` method do?

In a Queue, what does the poll() method do?

Select the correct answer

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Section 2. Chapter 6
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