!636 !standard functions main { psvm { File javax = new File(System.getProperty("user.home"), ".javax"); long now = System.currentTimeMillis(); for (File dir : javax.listFiles()) { if (dir.isDirectory() && Pattern.compile("\\d+").matcher(dir.getName()).matches()) { long time = Long.parseLong(dir.getName()); long seconds = (now-time)/1000; long minutes = seconds/60; long hours = minutes/60; if (hours >= 1) { System.out.println("Can delete " + dir.getAbsolutePath() + ", age: " + hours + " h"); } } } } }