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 after)
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 before)
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 after)
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 before)
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 f)
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 mapper)
Returns a stream consisting of the results of applying the given
function to the elements of this stream.
|
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