Uses of Class
java.util.OptionalDouble
Package
Description
Contains the collections framework, some internationalization support classes,
a service loader, properties, random number generation, string parsing
and scanning classes, base64 encoding and decoding, a bit array, and
several miscellaneous utility classes.
Classes to support functional-style operations on streams of elements, such
as map-reduce transformations on collections.
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Uses of OptionalDouble in java.util
Modifier and TypeMethodDescriptionstatic OptionalDouble
OptionalDouble.empty()
Returns an emptyOptionalDouble
instance.static OptionalDouble
OptionalDouble.of(double value)
Returns anOptionalDouble
describing the given value. -
Uses of OptionalDouble in java.util.stream
Modifier and TypeMethodDescriptionDoubleStream.average()
Returns anOptionalDouble
describing the arithmetic mean of elements of this stream, or an empty optional if this stream is empty.IntStream.average()
Returns anOptionalDouble
describing the arithmetic mean of elements of this stream, or an empty optional if this stream is empty.LongStream.average()
Returns anOptionalDouble
describing the arithmetic mean of elements of this stream, or an empty optional if this stream is empty.DoubleStream.findAny()
Returns anOptionalDouble
describing some element of the stream, or an emptyOptionalDouble
if the stream is empty.DoubleStream.findFirst()
Returns anOptionalDouble
describing the first element of this stream, or an emptyOptionalDouble
if the stream is empty.DoubleStream.max()
Returns anOptionalDouble
describing the maximum element of this stream, or an empty OptionalDouble if this stream is empty.DoubleStream.min()
Returns anOptionalDouble
describing the minimum element of this stream, or an empty OptionalDouble if this stream is empty.DoubleStream.reduce(DoubleBinaryOperator op)
Performs a reduction on the elements of this stream, using an associative accumulation function, and returns anOptionalDouble
describing the reduced value, if any.