public class AppBasis {

    public static enum ACTIONTYPS implements Serializable {
        ADD,
        SUB,
        MULT;
    }

}

Beispiel 11
AppBasis.ACTIONTYPS operation = AppBasis.ACTIONTYPS.ADD;
Bundle args = new Bundle();
args.putSerializable(ARG_OPERATION,operation);
operation = (AppBasis.ACTIONTYPS) getArguments().getSerializable(ARG_OPERATION);


Beispiel Studneten-ListView 
AppBasis.ACTIONTYPS action = AppBasis.ACTIONTYPS.NEW
intent.putSerializableExtra("ACTION", action);


Holen aus dem Intent
AppBasis.ACTIONTYPS action = intent.getSerializableExtra(EditDeleteNewActivity.ACTION);