Retrieve all values from HashMap keys in an ArrayList Java

Question

Good day, this is kind of confusing me now(brain freeze!) and seem to be missing something. Have an ArrayList which i populate with a HashMap. now i put in my HashMap and arrayl

Answer 1

It has method to find all values from map:

Map map=getMapObjectFromXyz();
Collection vs= map.values();
     

Iterate over vs to do some operation