Java Programming Tutorials

Java programming tutorials with many code examples!

Java Util Map compute(Key, BiFunction)

java.util.Map.compute(Key, BiFunction)

The method Map.compute(Key, BiFunction) returns the new value associated with the specified key. The value is computed using the given function.

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Java Time Clock tick(Clock,Duration)

java.time.Clock.tick(Clock baseClock, Duration duration)

The method Clock.tick(Clock, Duration) returns a clock that will return instants from given baseClock truncated to given duration.

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Java Time Clock systemUTC

java.time.Clock.systemUTC()

The method Clock.systemUTC() returns a clock that will use the best available system clock to convert instant into date and time using UTC time-zone.

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Java Time Clock systemDefaultZone

java.time.Clock.systemDefaultZone()

The method Clock.systemDefaultZone() returns a clock that will use the best available system clock to convert instant into date and time using default time-zone.

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Java Time Clock offset(Clock,Duration)

java.time.Clock.offset(Clock,Duration)

The method java.time.Clock.offset(Clock,Duration) returns a wrapper around given Clock with the specified Duration added. This clock implementation allows easily to jump into the past and future.

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Java Time ZoneId getAvailableZoneIds

java.time.ZoneId.getAvailableZoneIds()

The method ZoneId.getAvailableZoneIds() returns set of available zone IDs, including all available region-based IDs. Usually passed to of(String zoneId) to create ZoneId.

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Java Time Clock system(ZoneId)

java.time.Clock.system(ZoneId zone)

The method java.time.Clock.system(ZoneId zone) a clock that uses the best available system clock in the specified zone – never null.

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Java time Clock fixed

java.time.Clock.fixed()

The method java.time.Clock.fixed() returns a clock that always returns the same time. This type of clock is mainly useful in testing.

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