How to access nested hashmap value?

Question

Map<String , Map<String, Object>>

Answer 1

If you have it defined like this:
Map<String , Map<String, Integer>> map1 = HashMap<>();

You can get value from inner map like this:
Object value = map1.get("outerKey").get("innerKey");

which is equal to
Map<String, Object> innerMap = map1.get("outerKey");
Object value = innerMap.get("innerKey");

Answer 2

Thank you...

Answer 3

I got better one here...

Map<Float, Map<Float, Integer>> map = new HashMap<>();

map.put(.0F, new HashMap(){{put(.0F,0);}});
map.put(.1F, new HashMap(){{put(.1F,1);}});

map.get(.0F).get(.0F);

Answer 4

How can I read the integer value only from the inner Map?