Java - Simple way to put LinkedHashMap keys/values into respective Lists?

Question

I have a LinkedHashMap < String, String > map .

List < String > keyList;
List < String > valueList;

map.keySet();
map.values();
<         


        

Answer 1

A different approach using java 8 -

List valueList = map.values().stream().collect(Collectors.toList()); 
List keyList = map.keySet().stream().collect(Collectors.toList());  

Notes:

• stream() - returns sequence of Object considering collection (here the map) as source

• Collectors - Collectors are used to combining the result of processing on the elements of a stream.