Creating a directory

http://kin.naver.com/detail/detail.php?d1id=1&dir_id=10106&eid=HdKBfW5EIwuryHQXBR+N88VvEmKXR7VG&qb=amF2YSC18Le6xeS4riC7/by6&pid=f5sUisoi5TlsscpbbPssss--480781&sid=SJAXBacDkEgAABPCXpU

   

 public static int TC7() {
        String dirName = "new_file";
        File file = null;
       
        try{
            file = new File(dirName);
            if(!file.isDirectory()) {
                file.mkdirs();
            }           
        } catch(Exception e)    {
            e.printStackTrace();
        }
       
        return 1;
}