Scala 中的日期差异
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时间：2020-10-22 06:55:58 来源:igfitidea点击:
Date difference in scala
提问by Kundan Kumar
I need a function to find the difference(in number of days)between two dates in "yyyy-mm-dd" format.
我需要一个函数来查找“yyyy-mm-dd”格式的两个日期之间的差异（天数）。
val basedate = "1970-01-01"
val currdate = "2015-02-25"
val diff = currdate - basedate
Please suggest.
请建议。
回答by Govind Singh
i think You are searching something like this
我想你正在寻找这样的东西
import java.time.LocalDate
import java.time.format.DateTimeFormatter
val startDate = "1970-01-01"
val formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd")
val oldDate = LocalDate.parse(startDate, formatter)
val currentDate = "2015-02-25"
val newDate = LocalDate.parse(currentDate, formatter)
println(newDate.toEpochDay() - oldDate.toEpochDay())
