Uses of Class
java.util.OptionalLong
Packages that use OptionalLong
Package
Description
HTTP Client and WebSocket APIs
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 OptionalLong in java.net.http
Methods in java.net.http that return OptionalLongModifier and TypeMethodDescriptionHttpHeaders.firstValueAsLong(String name) Returns anOptionalLongcontaining the first header string value of the named header field. -
Uses of OptionalLong in java.util
Methods in java.util that return OptionalLongModifier and TypeMethodDescriptionstatic OptionalLongOptionalLong.empty()Returns an emptyOptionalLonginstance.static OptionalLongOptionalLong.of(long value) Returns anOptionalLongdescribing the given value. -
Uses of OptionalLong in java.util.stream
Methods in java.util.stream that return OptionalLongModifier and TypeMethodDescriptionLongStream.findAny()Returns anOptionalLongdescribing some element of the stream, or an emptyOptionalLongif the stream is empty.LongStream.findFirst()Returns anOptionalLongdescribing the first element of this stream, or an emptyOptionalLongif the stream is empty.LongStream.max()Returns anOptionalLongdescribing the maximum element of this stream, or an empty optional if this stream is empty.LongStream.min()Returns anOptionalLongdescribing the minimum element of this stream, or an empty optional if this stream is empty.LongStream.reduce(LongBinaryOperator op) Performs a reduction on the elements of this stream, using an associative accumulation function, and returns anOptionalLongdescribing the reduced value, if any.