<Stream two collections and collect a map based on...

# stackoverflow

[user]

Stream two collections and collect a map based on common property
I have looked around a bit but have not found a elegant solution. What I am trying to do is have a nice streamlined (pun intended) solution to create a map from two collections who have 1 shared property (an id of sorts). The map should be key-value of the matching objects. How I have done it for now is a forEach on collection1 and within a foreEach on collection 2 to get the matching model and then do an operation on it. I would like to create the map and then separately just do the...