| Package | Description |
|---|---|
| java.util.function |
Functional interfaces provide target types for lambda expressions and method references.
|
| 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 |
|---|---|
default DoubleUnaryOperator |
DoubleUnaryOperator.andThen(DoubleUnaryOperator
Returns a composed operator that first applies this operator to its input, and then applies the
after operator to the result.
|
default DoubleUnaryOperator |
DoubleUnaryOperator.compose(DoubleUnaryOperator
Returns a composed operator that first applies the
before operator to its input, and then applies this operator to the result.
|
static DoubleUnaryOperator |
DoubleUnaryOperator.identity()
Returns a unary operator that always returns its input argument.
|
| Modifier and Type | Method and Description |
|---|---|
default DoubleUnaryOperator |
DoubleUnaryOperator.andThen(DoubleUnaryOperator
Returns a composed operator that first applies this operator to its input, and then applies the
after operator to the result.
|
default DoubleUnaryOperator |
DoubleUnaryOperator.compose(DoubleUnaryOperator
Returns a composed operator that first applies the
before operator to its input, and then applies this operator to the result.
|
| Modifier and Type | Method and Description |
|---|---|
static DoubleStream |
DoubleStream.iterate(double seed, DoubleUnaryOperator
Returns an infinite sequential ordered
DoubleStream 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.
|
DoubleStream |
DoubleStream.map(DoubleUnaryOperator
Returns a stream consisting of the results of applying the given function to the elements of this stream.
|