best proceed list files java, sorted date modified?

i wish list files directory, nonetheless i wish arrange such oldest files first. fortitude file.listfiles only review list formed file.lastmodified, nonetheless i wondering there improved way.

edit: tide solution, suggested, an opposite comparator:

file[] files = directory.listfiles();

arrays.sort(files, new comparator<file>(){
    open int compare(file f1, record f2)
    {
        relapse long.valueof(f1.lastmodified()).compareto(f2.lastmodified());
    } });