Uses of Class
java8.util.OptionalLong

Packages that use OptionalLong

Package	Description
java8.util	Provides some of the new java.util classes and implementations of static and default interface methods added in Java 8.
java8.util.stream	Classes to support functional-style operations on streams of elements, such as map-reduce transformations on collections.

Uses of OptionalLong in java8.util

Methods in java8.util that return OptionalLong

Modifier and Type	Method and Description
static OptionalLong	OptionalLong.empty() Returns an empty OptionalLong instance.
static OptionalLong	OptionalLong.of(long value) Return an OptionalLong with the specified value present.

Uses of OptionalLong in java8.util.stream

Methods in java8.util.stream that return OptionalLong

Modifier and Type	Method and Description
OptionalLong	LongStream.findAny() Returns an OptionalLong describing some element of the stream, or an empty OptionalLong if the stream is empty.
OptionalLong	LongStream.findFirst() Returns an OptionalLong describing the first element of this stream, or an empty OptionalLong if the stream is empty.
OptionalLong	LongStream.max() Returns an OptionalLong describing the maximum element of this stream, or an empty optional if this stream is empty.
OptionalLong	LongStream.min() Returns an OptionalLong describing the minimum element of this stream, or an empty optional if this stream is empty.
OptionalLong	LongStream.reduce(LongBinaryOperator op) Performs a reduction on the elements of this stream, using an associative accumulation function, and returns an OptionalLong describing the reduced value, if any.