Set<String> mySet = new HashSet<String>();
mySet.add("D");
mySet.add("A");
mySet.add("B");
mySet.add("C");
mySet.add("E");
System.out.println(mySet); // May be Sorted but sorting is not guaranteed
mySet = new TreeSet<String>(mySet);
System.out.println(mySet); // Sorted
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