java list sort descending

1import java.util.*;
2public class Details  {
3
4	public static void main(String args[]){
5	   ArrayList<String> arraylist = new ArrayList<String>();
6	   arraylist.add("AA");
7	   arraylist.add("ZZ");
8	   arraylist.add("CC");
9	   arraylist.add("FF");
10
11	   /*Unsorted List: ArrayList content before sorting*/
12	   System.out.println("Before Sorting:");
13	   for(String str: arraylist){
14			System.out.println(str);
15		}
16
17	   /* Sorting in decreasing order*/
18	   Collections.sort(arraylist, Collections.reverseOrder());
19
20	   /* Sorted List in reverse order*/
21	   System.out.println("ArrayList in descending order:");
22	   for(String str: arraylist){
23			System.out.println(str);
24		}
25	}
26}