How to sort files from a directory by date in java? [duplicate]

Answer 1

Edit: In java8:

Arrays.sort(files, (a, b) -> Long.compare(a.lastModified(), b.lastModified())); link

I found some interesting code,very close to what you need, have a look at it(Just a quick on the run implementation of Comparator):

File f = new File("/home/myfiles");

File [] files = f.listFiles();

Arrays.sort( files, new Comparator()
{
    public int compare(Object o1, Object o2) {

        if (((File)o1).lastModified() > ((File)o2).lastModified()) {
            return -1;
        } else if (((File)o1).lastModified() < ((File)o2).lastModified()) {
            return +1;
        } else {
            return 0;
        }
    }

}); 

Also you can have a look at this post, see how the guy solved the problem: Best way to list files in Java, sorted by Date Modified?

Answer 2

I would use FileUtils in commons-io to get back the Collection of Files. I would then apply a custom comparator. It should be pretty easy.

Answer 3

Your best option is to use a comparator. There is a similar question and answer here... Best way to list files in Java, sorted by Date Modified?