Collections and Generics

Question : 1 of 53

Marks: +1, -0

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

Go to Question:

Next Question