| 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. | 
| Modifier and Type | Method and Description | 
|---|---|
| static OptionalInt | OptionalInt. empty()Returns an empty  OptionalIntinstance. | 
| static OptionalInt | OptionalInt. of(int value)Return an  OptionalIntwith the specified value present. | 
| Modifier and Type | Method and Description | 
|---|---|
| OptionalInt | IntStream. findAny()Returns an  OptionalIntdescribing some element of the stream, or
 an emptyOptionalIntif the stream is empty. | 
| OptionalInt | IntStream. findFirst()Returns an  OptionalIntdescribing the first element of this
 stream, or an emptyOptionalIntif the stream is empty. | 
| OptionalInt | IntStream. max()Returns an  OptionalIntdescribing the maximum element of this
 stream, or an empty optional if this stream is empty. | 
| OptionalInt | IntStream. min()Returns an  OptionalIntdescribing the minimum element of this
 stream, or an empty optional if this stream is empty. | 
| OptionalInt | IntStream. reduce(IntBinaryOperator op)Performs a reduction on the
 elements of this stream, using an
 associative accumulation
 function, and returns an  OptionalIntdescribing the reduced value,
 if any. | 
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