Uses of Class
java.util.OptionalLong

Packages that use OptionalLong

Package	Description
java.util	Contains the collections framework, legacy collection classes, event model, date and time facilities, internationalization, and miscellaneous utility classes (a string tokenizer, a random-number generator, and a bit array).
java.util.stream	Classes to support functional-style operations on streams of elements, such as map-reduce transformations on collections.

Uses of OptionalLong in java.util

Methods in java.util that return OptionalLong

Modifier and Type	Method	Description
static OptionalLong	OptionalLong.empty()	Returns an empty OptionalLong instance.
static OptionalLong	OptionalLong.of(long value)	Returns an OptionalLong describing the given value.

Uses of OptionalLong in java.util.stream

Methods in java.util.stream that return OptionalLong

Modifier and Type	Method	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.