| Package | Description |
|---|---|
| java8.util.function |
Functional interfaces provide target types for lambda expressions
and method references.
|
| java8.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 <T> UnaryOperator<T> |
UnaryOperators.identity()
Returns a unary operator that always returns its input argument.
|
| Modifier and Type | Method and Description |
|---|---|
static <T> Stream<T> |
StreamSupport.iterate(T seed,
UnaryOperator<T> f)
Returns an infinite sequential ordered
Stream produced by iterative
application of a function f to an initial element seed,
producing a Stream consisting of seed, f(seed),
f(f(seed)), etc. |