Java通过年月，计算月份天数。

SimpleDateFormat simpleDate = new SimpleDateFormat("yyyy/MM");

String dyear="2013"; String dmouth="10";

Calendar rightNow = Calendar.getInstance();

try{

    rightNow.setTime(simpleDate.parse(dyear+"/"+dmouth));

}catch(ParseException e){

    e.printStackTrace();

}

int days = rightNow.getActualMaximum(Calendar.DAY_OF_MONTH);//根据年月 获取月份天数