Creating nested Map with different type

Question

I am try to create map with different map inside

val mymap = Map("name"->"somename",Map(1->2))

I got from compiler:

scala: type mismatch;
 found   : scala.collection.immutable.Map[Int,Int]
 required: (?, ?)
  val mymap = Map("name"->"somename",Map(1->2))
                                        ^

Presumably you need some key for your nested Map which is the value... — Boris the Spider
– Boris the Spider, Commented Jul 11, 2013 at 15:27

om-nom-nom · Accepted Answer · 2013-07-11 15:27:51Z

4

Why do you expect it to work? You've provided only key without value:

val key = Map(1->2)
val mymap = Map("name"->"somename", key)

Perhaps you wanted to combine two maps? This can be done with:

val mymap = Map("name"->"somename") ++ Map(1->2)
// scala.collection.immutable.Map[Any,Any] = Map(name -> somename, 1 -> 2)

answered Jul 11, 2013 at 15:27

om-nom-nom

63k13 gold badges186 silver badges231 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

thSoft · Accepted Answer · 2013-07-11 15:28:41Z

3

A Map consists of key-value pairs (whose type is (?, ?)). You have to assign the Map value to a key as well:

val mymap = Map("name"->"somename","othername"->Map(1->2))

answered Jul 11, 2013 at 15:28

thSoft

22.8k6 gold badges96 silver badges105 bronze badges

Collectives™ on Stack Overflow

Creating nested Map with different type

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related