CODEWITHSUNDEEP
javadatejava-8
chiperortiz
chiperortiz

Reputation: 4991

Java 8 Substracting Dates return 1 day

I am reading about the great new java.time API in Java 8

Something like this

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));  
   }    
}

Both outputs are listed below.

1
2467

I think this result is correct

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

But what about this result returning 1

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

What i am doing wrong any help is hugely appreciate.

Upvotes: 0

Views: 94

Answers (2)

Elliott Frisch
Elliott Frisch

Reputation: 201467

The class Period represents a number of years, months and days (in that order); if you want to get just the days it is up to you to convert it.

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));
}

Output is

6 years, 9 months, 0 days
2466

And 0 days is correct because it is the 26th today.

Upvotes: 7

Taemyr
Taemyr

Reputation: 3437

Period.getDays, returns the number of days component of the period.

Ie. java.time.Period is an amount of time measured in years, months and days. Period.getDays returns the number of days part of this.

Upvotes: 3

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