在第 4 行代码(忽略空格和注释)及之后我正在计算 2 个日期之间的月份差异。这可行，但看起来有点老套。有没有更好的办法？
int handleAllowance(LocalDate today) {
int allowance = membership.allowance();
if (allowance == 0) return 0;
// if update was last month (or earlier)
int months = today.monthOfYear().getMaximumValue() - today.monthOfYear().getMinimumValue(); // yeah, 12, but just to be 100% correct :-)
int curMonth = (today.getYear() * months) + today. getMonthOfYear();
int updMonth = (lastAllowanceUpdate.getYear() * months) + lastAllowanceUpdate.getMonthOfYear();
if (curMonth > updMonth) {
// ...and if today is on or past update day
int updateDay = Math.min(allowanceDay, today.dayOfMonth().getMaximumValue());
if (today.getDayOfMonth() >= updateDay) {
// number of months to give allowance (in the rare case this process fails to run for 2 months or more)
int allowanceMonths = curMonth - updMonth;
// give credits
final int totalAllowance = allowance * allowanceMonths;
giveCredits(totalAllowance);
// update day
lastAllowanceUpdate = lastAllowanceUpdate.plusMonths(allowanceMonths);
// return the allowance given
return totalAllowance;
}
}
return 0;
}
最佳答案
Months.monthsBetween(
start.withDayOfMonth(1),
end.withDayOfMonth(1)).getMonths()
关于java - 计算 Joda Time 的月差，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/6844061/