Is there a simple way to sort a ArrayList<> with ASCII descend in java?

Question

I hope to sort myVideoFile with ASCII descending, so I can get the result newVideoFile.get(0) is "d", newVideoFile.get(1) is "c", newVideoFile.get(2) is "b" and newVideoFile.get(3) is "a".

Is there a simple way to do that in java?

 List<String> myVideoFile=new ArrayList<>();

 myVideoFile.add("a");
 myVideoFile.add("b");
 myVideoFile.add("c");
 myVideoFile.add("d");

Use `Collections.sort` and pass `Collections.reverseOrder()` as your comparator. — aioobe, Nov 11 '15 at 08:56
Possible duplicate of [Sort List in reverse order](http://stackoverflow.com/questions/18073590/sort-list-in-reverse-order) — 1615903, Nov 11 '15 at 08:57

PC. · Accepted Answer · 2015-11-11T08:57:44.110

8

You can try this

Collections.sort(data, Collections.reverseOrder());

Sorts the list in descending order.

edited Nov 11 '15 at 08:57

answered Nov 11 '15 at 08:56

PC.

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score 1 · Answer 2 · answered Nov 11 '15 at 09:11

The easiest way is Collections.sort(). you have to enter your list(myVideoFile) and how to sort it(in your case: Collections.reverseOrder()).

So if I got your example right your code should lool like that:

 List<String> myVideoFile=new ArrayList<>();

 myVideoFile.add("a");
 myVideoFile.add("b");
 myVideoFile.add("c");
 myVideoFile.add("d");

 Collections.sort(myVideoFile, Collections.reverseOrder());

You can also easily test it by printing out your string in and forech-statment:

    for(String s : myVideoFile)
    {
        //Java way to print
        System.out.println(s);
        //Android way to print
        Log.i("TEST", s);
    }

Is there a simple way to sort a ArrayList<> with ASCII descend in java?

2 Answers2