将TreeSet转换为填充HashMap的最佳方法是什么？

Question

What is the best way to convert a TreeSet to populate a HashMap using Java ? For example:

SortedSet<Map.Entry<String, Double>> sortedset =
  new TreeSet<Map.Entry<String, Double>();

to

Map<String, Double> map = new HashMap<String, Double>();

Answer 1

I could be wrong, but i don't think Java has anything built in to do this. Your best bet is to do it manually (which is pretty straightforward):

for (Map.Entry<String, Double> entry : sortedSet)
    map.put(entry.getKey(), entry.getValue());