cours/images/datetime/duration-period.svg

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@startuml
package java.time {
 package temporal {
  interface TemporalUnit
  interface TemporalAmount {
   +{abstract} addTo(temporal: Temporal): Temporal
   +{abstract} get(unit: TemporalUnit ): long
   +{abstract} substractFrom(temporal: Temporal): Temporal
  }
  enum ChronoUnit {
   +{static} MONTHS
   +{static} DAYS
   +{static} HOURS
   +{static} MINUTES
....
   <i>etc.</i>
  }
 }
 package chrono {
  interface ChronoPeriod {
   +{abstract} minus(amountToSubtract: TemporalAmount): ChronoPeriod
   +{abstract} plus(amountToAdd: TemporalAmount): ChronoPeriod
  }
 }
 class Duration {
  +{static} ZERO: Duration
  +{static} between(startInclusive: Temporal, endExclusive: Temporal): Duration
  +{static} of(amount: long, unit: TemporalUnit)
  +{static} from(amount: TemporalAmount): Duration
....
  + abs(): Duration
  + minus(duration: Duration): Duration
  + plus(duration: Duration): Duration
  + negated(): Duration
 }
 class Period {
  +{static} ZERO: Duration
  +{static} between(startDateInclusive: LocalDate, endDateExclusive: LocalDate): Period
  +{static} from(amount: TemporalAmount): Period
  +{static} of(years: int, months: int, days: int): Period
....
  + minusDays(daysToSubtract: long): Period
  + minusMonths(monthsToSubtract: long): Period
  + minusYears(yearsToSubtract: long): Period
  + plusDays(daysToAdd: long): Period
  + plussMonths(monthsToAdd: long): Period
  + plusYears(yearsToAdd: long): Period
....
  + withDays(days: int): Period
  + withsMonths(months: int): Period
  + withYears(years: int): Period
 }
}
ChronoUnit .right.|> TemporalUnit
Duration .up.|> TemporalAmount
TemporalAmount .left.> TemporalUnit
Period .up.|> ChronoPeriod
ChronoPeriod .up.|> TemporalAmount
hide empty members
@enduml

PlantUML version 1.2019.08(Sat Jul 13 19:25:14 UTC 2019)
(GPL source distribution)
Java Runtime: Java(TM) SE Runtime Environment
JVM: Java HotSpot(TM) 64-Bit Server VM
Java Version: 1.7.0_25-b15
Operating System: Linux
Default Encoding: UTF-8
Language: en
Country: US
--></g></svg>