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Given:
1. import java.util.*;
2. public class Example {
3. public static void main(String[] args) {
4. // insert code here
5. set.add(new Integer(2));
6. set.add(new Integer(1));
7. System.out.println(set);
8. }
9. }
Which code, inserted at line 4, guarantees that this program will output [1, 2]?

A.	Set set = new TreeSet();	B.	Set set = new HashSet();
C.	Set set = new SortedSet();	D.	List set = new SortedList();
E.	Set set = new LinkedHashSet();

Answer and Explanation

Answer:Set set = new TreeSet();

Explanation:
Whenever you add elements into TreeSet it will sort automatically, so if you want data to be sorted then add into TreeSet.

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