SimpleDateFormat sdf = new SimpleDateFormat();
DateFormatSymbols dfs = sdf.getDateFormatSymbols();
String era[] = { "BCE", "CE" };
dfs.setEras(era);
sdf.setDateFormatSymbols(dfs);
sdf.applyPattern("MMMM d yyyy G");
System.out.println(sdf.format(new Date()));