Calendar time=Calendar.getInstance(); time.clear(); time.set(Calendar.YEAR,2018); //year年 time.set(Calendar.MONTH,1); //Calendar对象默认一月为0,month月 int day=time.getActualMaximum(Calendar.DAY_OF_MONTH);//本月份的天数 System.out.println(day);
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Calendar time=Calendar.getInstance(); time.clear(); time.set(Calendar.YEAR,2018); //year年 time.set(Calendar.MONTH,1); //Calendar对象默认一月为0,month月 int day=time.getActualMaximum(Calendar.DAY_OF_MONTH);//本月份的天数 System.out.println(day);
转载于:https://www.cnblogs.com/fengdaren/p/8820789.html