java 獲取目標時間到當前時間中間的月份和每月最大時間

話不多說自己上代碼：

Date firstDate = DateUtil.formate("2018-01-01", "yyyy-MM-dd");
        Date currDate = new Date();
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(currDate);
        int lastDay = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
        calendar.set(Calendar.DAY_OF_MONTH, lastDay);
        currDate = calendar.getTime();
        calendar.setTime(firstDate);
        Date itemDate = null;
        while (calendar.getTime().before(currDate)) {
            lastDay = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
            calendar.set(Calendar.DAY_OF_MONTH, lastDay);
            itemDate = calendar.getTime();
            System.out.println(DateUtil.formate(itemDate, "yyyy-MM-dd"));
            calendar.add(Calendar.MONTH, 1);
        }

結果：