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.concurrent |
Utility classes commonly useful in concurrent programming.
|
java.util.concurrent.atomic |
A small toolkit of classes that support lock-free thread-safe
programming on single variables.
|
java.util.stream |
Classes to support functional-style operations on streams of elements, such
as map-reduce transformations on collections.
|
Modifier and Type | Method | Description |
---|---|---|
static void |
Arrays.parallelPrefix(int[] array,
int fromIndex,
int toIndex,
IntBinaryOperator op) |
Performs
Arrays.parallelPrefix(int[], IntBinaryOperator)
for the given subrange of the array. |
static void |
Arrays.parallelPrefix(int[] array,
IntBinaryOperator op) |
Cumulates, in parallel, each element of the given array in place,
using the supplied function.
|
Modifier and Type | Method | Description |
---|---|---|
int |
ConcurrentHashMap.reduceEntriesToInt(long parallelismThreshold,
ToIntFunction<Map.Entry<K,V>> transformer,
int basis,
IntBinaryOperator reducer) |
Returns the result of accumulating the given transformation
of all entries using the given reducer to combine values,
and the given basis as an identity value.
|
int |
ConcurrentHashMap.reduceKeysToInt(long parallelismThreshold,
ToIntFunction<? super K> transformer,
int basis,
IntBinaryOperator reducer) |
Returns the result of accumulating the given transformation
of all keys using the given reducer to combine values, and
the given basis as an identity value.
|
int |
ConcurrentHashMap.reduceToInt(long parallelismThreshold,
ToIntBiFunction<? super K,? super V> transformer,
int basis,
IntBinaryOperator reducer) |
Returns the result of accumulating the given transformation
of all (key, value) pairs using the given reducer to
combine values, and the given basis as an identity value.
|
int |
ConcurrentHashMap.reduceValuesToInt(long parallelismThreshold,
ToIntFunction<? super V> transformer,
int basis,
IntBinaryOperator reducer) |
Returns the result of accumulating the given transformation
of all values using the given reducer to combine values,
and the given basis as an identity value.
|
Modifier and Type | Method | Description |
---|---|---|
int |
AtomicInteger.accumulateAndGet(int x,
IntBinaryOperator accumulatorFunction) |
Atomically updates the current value with the results of
applying the given function to the current and given values,
returning the updated value.
|
int |
AtomicIntegerArray.accumulateAndGet(int i,
int x,
IntBinaryOperator accumulatorFunction) |
Atomically updates the element at index
i with the
results of applying the given function to the current and given
values, returning the updated value. |
int |
AtomicIntegerFieldUpdater.accumulateAndGet(T obj,
int x,
IntBinaryOperator accumulatorFunction) |
Atomically updates the field of the given object managed by this
updater with the results of applying the given function to the
current and given values, returning the updated value.
|
int |
AtomicInteger.getAndAccumulate(int x,
IntBinaryOperator accumulatorFunction) |
Atomically updates the current value with the results of
applying the given function to the current and given values,
returning the previous value.
|
int |
AtomicIntegerArray.getAndAccumulate(int i,
int x,
IntBinaryOperator accumulatorFunction) |
Atomically updates the element at index
i with the
results of applying the given function to the current and given
values, returning the previous value. |
int |
AtomicIntegerFieldUpdater.getAndAccumulate(T obj,
int x,
IntBinaryOperator accumulatorFunction) |
Atomically updates the field of the given object managed by this
updater with the results of applying the given function to the
current and given values, returning the previous value.
|
Modifier and Type | Method | Description |
---|---|---|
int |
IntStream.reduce(int identity,
IntBinaryOperator op) |
Performs a reduction on the
elements of this stream, using the provided identity value and an
associative
accumulation function, and returns the reduced value.
|
OptionalInt |
IntStream.reduce(IntBinaryOperator op) |
Performs a reduction on the
elements of this stream, using an
associative accumulation
function, and returns an
OptionalInt describing the reduced value,
if any. |
Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
Copyright © 1993, 2017, Oracle and/or its affiliates. 500 Oracle Parkway
Redwood Shores, CA 94065 USA. All rights reserved.
DRAFT 9-internal+0-adhoc.mlchung.jdk9-jdeps