Uses of Class java.util.OptionalDouble (Java SE 22 & JDK 22)
Description: use: module: java.base, package: java.util, class: OptionalDouble

# Uses of Class
java.util.OptionalDouble

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.

- ## Uses of OptionalDouble in java.util

  Methods in java.util that return OptionalDouble
  Modifier and Type
  Method
  Description
  `static OptionalDouble`
  OptionalDouble.`empty()`
  Returns an empty `OptionalDouble` instance.
  `static OptionalDouble`
  OptionalDouble.`of(double value)`
  Returns an `OptionalDouble` 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 an `OptionalDouble` describing the arithmetic mean of elements of this stream, or an empty optional if this stream is empty.
  `OptionalDouble`
  IntStream.`average()`
  Returns an `OptionalDouble` describing the arithmetic mean of elements of this stream, or an empty optional if this stream is empty.
  `OptionalDouble`
  LongStream.`average()`
  Returns an `OptionalDouble` describing the arithmetic mean of elements of this stream, or an empty optional if this stream is empty.
  `OptionalDouble`
  DoubleStream.`findAny()`
  Returns an `OptionalDouble` describing some element of the stream, or an empty `OptionalDouble` if the stream is empty.
  `OptionalDouble`
  DoubleStream.`findFirst()`
  Returns an `OptionalDouble` describing the first element of this stream, or an empty `OptionalDouble` if the stream is empty.
  `OptionalDouble`
  DoubleStream.`max()`
  Returns an `OptionalDouble` describing the maximum element of this stream, or an empty OptionalDouble if this stream is empty.
  `OptionalDouble`
  DoubleStream.`min()`
  Returns an `OptionalDouble` 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 an `OptionalDouble` describing the reduced value, if any.