Junior — Middle
Can you name the types of ordered mappings (Map) in programming languages?
sobes.tech AI
Answer from AI
In programming languages, there are various types of ordered maps (Map) that preserve the order of elements:
- LinkedHashMap (Java) — preserves insertion order.
- TreeMap (Java) — stores elements in sorted order by key.
- SortedDictionary (C#) — orders elements by key.
- OrderedDict (Python) — preserves the order of addition of elements (since Python 3.7, a regular dict also preserves order).
In Android (Java/Kotlin), the most commonly used are:
- LinkedHashMap — if insertion order is important.
- TreeMap — if a sorted order by key is needed.
Thus, the choice depends on whether you need insertion order or sorting by key.