Java計算プラス数ヶ月後
public static String addMonth(String date,String dateType,int month){
String nowDate = null;
SimpleDateFormat format = new SimpleDateFormat(dateType);
try {
Date parse = format.parse(date);
Calendar calendar = Calendar.getInstance();
calendar.setTime(parse);
calendar.add(Calendar.MONTH, month);
nowDate = format.format(calendar.getTime());
} catch (ParseException e) {
e.printStackTrace();
}
return nowDate;
}