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Created August 2, 2009 03:47
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Sort map keys by values.
public static <T, S extends Comparable<? super S>> List<T> valueSortedKeys(final Map<T, S> map)
List<T> list = new ArrayList<T>(map.keySet());
Collections.sort(list, new Comparator<T>()
public int compare(T t1, T t2)
return map.get(t1).compareTo(map.get(t2));
return list;
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