- March 2020Collabox Creative HubMarch 2020Collabox Creative Hub, Jl. Indraprasta No.74, Pendrikan Kidul, Kec. Semarang Tengah, Kota Semarang, Jawa Tengah 50131, IndonesiaCreate your own Android App! Learn how to code and design an android application with SANDEC (Semarang Android Developer Center). After four classes you'll be able to design your own android application.