Java Concurrent HashMap

Question

i want to convert a ConcurrentHashMap to a TreeMap.Can i do that?

Answer 1

If you need a Sorted ConcurrentMap look at ConcurrentSkipListMap. Considering its complexity it is both non blocking and fast. To be more specific:

This class implements a concurrent variant of SkipLists providing expected average log(n) time cost for the
containsKey, get, put and remove operations and their variants.

Answer 2

A ConcurrentHashMap is still a Map. So you can create a new TreeMap like this:

ConcurrentHashMap myMap;
...
TreeMap myTreeMap = new TreeMap( myMap );