!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"); 
        }
      }
    }
  }
}

supersedes #2000473