I have a Map "M" and a list "L", now i want get the values from that map "M" using those list of keys available in "L". I want to use java 8 Stream concept can anyone help on this.
I coded to print those values but what i need is to get values into a list
list.stream().forEach(s->{System.out.println(map.get(s));});
map
each element of the List
to the corresponding value in the Map
and collect to a List
:
List<String> values =
list.stream()
.map(map::get)
.collect(Collectors.toList());
You might want to consider eliminating null
values (which result from keys not present in the Map
).
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