背景:
提供任意日期,比如:2023-01-01,计算对应月份的天数
方案一:Calendar
Calendar calendar = Calendar.getInstance(); SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd"); calendar.setTime(simpleDateFormat.parse(timeValue)); int days = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
方案二:hutool
标签:01,java,天数,SimpleDateFormat,当月,Calendar,simpleDateFormat,calendar From: https://www.cnblogs.com/jamstack/p/17411107.html