import java.io.File; import java.util.Comparator; public class ModfSorting implements Comparator{ @Override public int compare(Object arg1, Object arg2) { // TODO Auto-generated method stub File f1 = (File) arg1; File f2 = (File) arg2; if (f1.lastModified() > f2.lastModified()) { return 1; } else if (f1.lastModified() == f2.lastModified()) { return 0; } else { return -1; } } }