-
What is the output of this program?
import java.util.*;
public class Collection_AlgorithmsExample
{
public static void main(String args[])
{
LinkedList listObject = new LinkedList();
listObject.add(new Integer(22));
listObject.add(new Integer(28));
listObject.add(new Integer(25));
listObject.add(new Integer(21));
Iterator Itr = listObject.iterator();
Collections.reverse(listObject);
while(Itr.hasNext())
System.out.print(Itr.next() + " ");
}
}
-
- 22 28 25 21
- 21 25 28 22
- 28 25 22 21
- 21 22 25 28
- None of these
Correct Option: B
Collections.reverse(list) reverses the given list, the list was 22->28->25->21 after reversing it became 21->25->28->22.
