CODEWITHSUNDEEP
scalacollections
jtk
jtk

Reputation: 11

What is the difference between hashmap and Listmap in scala

Is there any difference between hashmap and listmap in terms of properties.

var listMap = ListMap("Rice"->"100","Wheat"->"50","Gram"->"500")    // Creating listmap with elements

and

var hashMap2 = HashMap("A"->"Apple","B"->"Ball","C"->"Cat")

Upvotes: 1

Views: 1557

Answers (1)

Nagarjuna Pamu
Nagarjuna Pamu

Reputation: 14825

Main difference: ListMap maintains the order of elements while HashMap doesn't.

In case of ListMap:

Entries are stored internally in reversed insertion order, which means the newest key is at the head of the list. Iteration order is always guaranteed.

In case of HashMap:

No guarantees on iteration order.

for more info:

ListMap https://www.scala-lang.org/api/current/scala/collection/immutable/ListMap.html

Upvotes: 3

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