Test Index

Collections and Generics

Question : 1

Total: 53

Given:

1. HashMap props = new HashMap();
2. props.put("key45", "some value");
3. props.put("key12", "some other value");
4. props.put("key39", "yet another value");
5. Set s = props.keySet();
6. /* insert code here*/

What, inserted at line 6, will sort the keys in the props HashMap?

Arrays.sort(s);
s = new TreeSet(s);
Collections.sort(s);
s = new SortedSet(s);

Validate

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