Java Programming Tutorials

Java programming tutorials with many code examples!

Java Util Map merge(key, value, BiFunction)

java.util.Map.merge(key, value, BiFunction)

The method Map.merge(key, value, BiFunction) associates given value with the given key or calculates the new value from the old value and the given one using provided remapping function.

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Java Util Map getOrDefault

java.util.Map.getOrDefault(key, defaultValue)

The method Map.getOrDefault(key, defaultValue) returns mapped value for the given key or defaultValue if there is no such mapping.

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Java Util Map forEach(BiConsumer)

java.util.Map.forEach(BiConsumer)

The method Map.forEach(BiConsumer) performs the given action for each entry of the map until all are processed or exception is thrown.

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Java Util Map computeIfAbsent(key,Function)

java.util.Map.computeIfAbsent(key, Function)

The method Map.computeIfAbsent(key, Function) computes the new value and associates it with the key if there is no mapping for the given key or the mapping is null. Returns the new value associated with the key.

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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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