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Interview prep | Level 6

Java Multithreading
Level 6 , Lesson 14
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"Hi, Amigo!"

Interview questions
1 How do I use the Comparable interface?
2 How do I use the Comparator interface?
3 What methods does the Collections class have?
4 What methods does the Arrays class have?
5 What do we call the sorting that happens when Collections.sort() is called?
6 What is the concurrent package?
7 What classes from the concurrent package do you know?
8 How is the ConcurrentHashMap class organized?
9 How is the ConcurrentHashMap class organized?
10 What is an iterator?
11 What's a mutex?
12 What's a monitor?
C++
Comments (6)
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catalin1989 Level 37, Romania
6 February 2024
Question 8 and 9 are the same. Maybe they are really important and that is why they are written twice :))
Andrei Level 41
5 May 2021
Hey, some of these questions are the same as in lesson 12 ! booooooooooooooooooo
Henrique Level 41, São Paulo, Brazil
7 August 2020
What's the answer to "What do we call the sorting that happens when Collections.sort() is called?"?
Dave Andrea Level 41, Canada
17 September 2020
Mergesort?
matemate123 Level 50, Kraków, Poland
17 May 2023
The sorting that occurs when Collections.sort() is called is known as "natural ordering" or "default sorting." This method sorts the elements of a list in ascending order based on their natural ordering.
Jaime Padilla Level 41, Chandler, United States Expert
15 October 2023
When you call Collections.sort() in Java, you are using TimSort, a hybrid sorting algorithm that combines elements of merge sort and insertion sort to efficiently sort collections of data. It has several advantages, including stability (maintaining the order of equal elements) and good performance on various types of input data. - ChatGPT