Uses of Class
java.util.OptionalDouble
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Packages that use OptionalDouble Package Description java.util 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.java.util.stream 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
Methods in java.util that return OptionalDouble Modifier and Type Method Description static 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
Methods in java.util.stream that return OptionalDouble Modifier and Type Method Description OptionalDouble
DoubleStream. average()
Returns anOptionalDouble
describing the arithmetic mean of elements of this stream, or an empty optional if this stream is empty.OptionalDouble
IntStream. average()
Returns anOptionalDouble
describing the arithmetic mean of elements of this stream, or an empty optional if this stream is empty.OptionalDouble
LongStream. average()
Returns anOptionalDouble
describing the arithmetic mean of elements of this stream, or an empty optional if this stream is empty.OptionalDouble
DoubleStream. findAny()
Returns anOptionalDouble
describing some element of the stream, or an emptyOptionalDouble
if the stream is empty.OptionalDouble
DoubleStream. findFirst()
Returns anOptionalDouble
describing the first element of this stream, or an emptyOptionalDouble
if the stream is empty.OptionalDouble
DoubleStream. max()
Returns anOptionalDouble
describing the maximum element of this stream, or an empty OptionalDouble if this stream is empty.OptionalDouble
DoubleStream. min()
Returns anOptionalDouble
describing the minimum element of this stream, or an empty OptionalDouble if this stream is empty.OptionalDouble
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.
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