Junior
What collections in Kotlin do you know and which ones have you worked with?
sobes.tech AI
Answer from AI
I am familiar with and have worked with the following collections in Kotlin:
- Iterable: The basic interface for collections, providing iteration capabilities.
- Collection: Extends
Iterable, adding methods for working with collections, such assize,isEmpty. - MutableCollection: Extends
Collection, adding methods for modifying the collection, such asadd,remove.
Collection Types:
-
List: An ordered list of elements allowing duplicates. Access to elements by index.
ArrayList: Array-based implementation, efficient for reading and appending at the end.LinkedList: Linked list implementation, efficient for inserting/removing in the middle.
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Set: A collection of unique elements. Does not guarantee order.
HashSet: Hash table-based implementation, quick element existence checks.LinkedHashSet: Preserves insertion order.SortedSet: Maintains elements in sorted order.
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Map: Key-value pairs. Keys are unique.
HashMap: Hash table-based implementation, fast key operations.LinkedHashMap: Preserves insertion order of keys.SortedMap: Maintains keys in sorted order.
Concurrent Programming (Java):
I have also worked with collections from the java.util.concurrent package for thread-safe operations in multithreaded environments, such as:
ConcurrentHashMapCopyOnWriteArrayList