Question

我正在阅读Java 8中新的java.time API

像这样的东西

public final class DaysWithBaby 
{
   private final LocalDate sheSayYes = LocalDate.of(2008,Month.APRIL,26);
   private final LocalDate today = LocalDate.now().plusDays(1);
   public static void main(String[] args) 
   {
       final DaysWithBaby clazz = new DaysWithBaby();
       System.out.println(Period.between(clazz.sheSayYes,clazz.today).getDays());
       System.out.println(ChronoUnit.DAYS.between(clazz.sheSayYes,clazz.today));  
   }    
}

下面列出了两种输出。

1
2467

我认为这个结果是正确的

System.out.println(ChronoUnit.DAYS.between(clazz.sheSayYes,clazz.today));

但是这个结果如何返回1

System.out.println(Period.between(clazz.sheSayYes,clazz.today).getDays());

我做错了任何帮助都非常感激。

Answer 1

班级Period代表若干年，月和日（按此顺序）;如果你想获得转换它的日子。

private static final LocalDate sheSayYes = LocalDate.of(2008, Month.APRIL,
        26);
private static final LocalDate today = LocalDate.now();

public static void main(String[] args) {
    Period p = Period.between(sheSayYes, today);
    System.out.printf("%d years, %d months, %d days%n", p.getYears(),
            p.getMonths(), p.getDays());
    System.out.println(ChronoUnit.DAYS.between(sheSayYes, today));
}

输出

6 years, 9 months, 0 days
2466

0天是正确的，因为今天是第26天。

Answer 2

Period.getDays，返回句点的组成天数。

IE中。 java.time.Period是以年，月和日为单位测量的时间量。 Period.getDays返回部分天数。

Java 8减去日期返回1天

2 个答案: