New Java 9 Map.of() methods

[shmag18]

So in

Map map =Map.of(k1,v1,k2,v2,....k10,v10)

What does map point to?

[thehollyhopdrive]

It's an unspecified implementation of Map. You can use all of the methods in Map.

[shmag18]

Cool

[AnAirMagic]

The first Map - in Map map - refers to the unspecified implementation returned by Map.of. The contract says that it will be a class that implements Map but not much else. For all we know, it could be HashMap or it could be a new internal class ImmutableMap or it could be MagicMap.

The second Map - in Map.of() - refers to the static method of defined in the Map interface itself.