| Package | Description | 
|---|---|
| java.security | Provides the classes and interfaces for the security framework. | 
| 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.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 | 
|---|---|
| void | Provider. forEach(BiConsumer<? super Object,? super Object> action) | 
| Modifier and Type | Method and Description | 
|---|---|
| void | WeakHashMap. forEach(BiConsumer<? super K,? super V> action) | 
| default void | Map. forEach(BiConsumer<? super K,? super V> action)Performs the given action for each entry in this map until all entries
 have been processed or the action throws an exception. | 
| void | TreeMap. forEach(BiConsumer<? super K,? super V> action) | 
| void | HashMap. forEach(BiConsumer<? super K,? super V> action) | 
| void | Hashtable. forEach(BiConsumer<? super K,? super V> action) | 
| void | IdentityHashMap. forEach(BiConsumer<? super K,? super V> action) | 
| void | LinkedHashMap. forEach(BiConsumer<? super K,? super V> action) | 
| Modifier and Type | Method and Description | 
|---|---|
| void | ConcurrentHashMap. forEach(BiConsumer<? super K,? super V> action) | 
| void | ConcurrentSkipListMap. forEach(BiConsumer<? super K,? super V> action) | 
| default void | ConcurrentMap. forEach(BiConsumer<? super K,? super V> action)Performs the given action for each entry in this map until all entries
 have been processed or the action throws an exception. | 
| void | ConcurrentHashMap. forEach(long parallelismThreshold,
       BiConsumer<? super K,? super V> action)Performs the given action for each (key, value). | 
| <U> CompletableFuture<Void> | CompletableFuture. thenAcceptBoth(CompletionStage<? extends U> other,
              BiConsumer<? super T,? super U> action) | 
| <U> CompletionStage<Void> | CompletionStage. thenAcceptBoth(CompletionStage<? extends U> other,
              BiConsumer<? super T,? super U> action)Returns a new CompletionStage that, when this and the other
 given stage both complete normally, is executed with the two
 results as arguments to the supplied action. | 
| <U> CompletableFuture<Void> | CompletableFuture. thenAcceptBothAsync(CompletionStage<? extends U> other,
                   BiConsumer<? super T,? super U> action) | 
| <U> CompletionStage<Void> | CompletionStage. thenAcceptBothAsync(CompletionStage<? extends U> other,
                   BiConsumer<? super T,? super U> action)Returns a new CompletionStage that, when this and the other
 given stage complete normally, is executed using this stage's
 default asynchronous execution facility, with the two results
 as arguments to the supplied action. | 
| <U> CompletableFuture<Void> | CompletableFuture. thenAcceptBothAsync(CompletionStage<? extends U> other,
                   BiConsumer<? super T,? super U> action,
                   Executor executor) | 
| <U> CompletionStage<Void> | CompletionStage. thenAcceptBothAsync(CompletionStage<? extends U> other,
                   BiConsumer<? super T,? super U> action,
                   Executor executor)Returns a new CompletionStage that, when this and the other
 given stage complete normally, is executed using the supplied
 executor, with the two results as arguments to the supplied
 function. | 
| CompletableFuture<T> | CompletableFuture. whenComplete(BiConsumer<? super T,? super Throwable> action) | 
| CompletionStage<T> | CompletionStage. whenComplete(BiConsumer<? super T,? super Throwable> action)Returns a new CompletionStage with the same result or exception as
 this stage, that executes the given action when this stage completes. | 
| CompletableFuture<T> | CompletableFuture. whenCompleteAsync(BiConsumer<? super T,? super Throwable> action) | 
| CompletionStage<T> | CompletionStage. whenCompleteAsync(BiConsumer<? super T,? super Throwable> action)Returns a new CompletionStage with the same result or exception as
 this stage, that executes the given action using this stage's
 default asynchronous execution facility when this stage completes. | 
| CompletableFuture<T> | CompletableFuture. whenCompleteAsync(BiConsumer<? super T,? super Throwable> action,
                 Executor executor) | 
| CompletionStage<T> | CompletionStage. whenCompleteAsync(BiConsumer<? super T,? super Throwable> action,
                 Executor executor)Returns a new CompletionStage with the same result or exception as
 this stage, that executes the given action using the supplied
 Executor when this stage completes. | 
| Modifier and Type | Method and Description | 
|---|---|
| default BiConsumer<T,U> | BiConsumer. andThen(BiConsumer<? super T,? super U> after)Returns a composed  BiConsumerthat performs, in sequence, this
 operation followed by theafteroperation. | 
| Modifier and Type | Method and Description | 
|---|---|
| default BiConsumer<T,U> | BiConsumer. andThen(BiConsumer<? super T,? super U> after)Returns a composed  BiConsumerthat performs, in sequence, this
 operation followed by theafteroperation. | 
| Modifier and Type | Method and Description | 
|---|---|
| BiConsumer<A,T> | Collector. accumulator()A function that folds a value into a mutable result container. | 
| Modifier and Type | Method and Description | 
|---|---|
| <R> R | Stream. collect(Supplier<R> supplier,
       BiConsumer<R,? super T> accumulator,
       BiConsumer<R,R> combiner)Performs a mutable
 reduction operation on the elements of this stream. | 
| <R> R | Stream. collect(Supplier<R> supplier,
       BiConsumer<R,? super T> accumulator,
       BiConsumer<R,R> combiner)Performs a mutable
 reduction operation on the elements of this stream. | 
| <R> R | DoubleStream. collect(Supplier<R> supplier,
       ObjDoubleConsumer<R> accumulator,
       BiConsumer<R,R> combiner)Performs a mutable
 reduction operation on the elements of this stream. | 
| <R> R | IntStream. collect(Supplier<R> supplier,
       ObjIntConsumer<R> accumulator,
       BiConsumer<R,R> combiner)Performs a mutable
 reduction operation on the elements of this stream. | 
| <R> R | LongStream. collect(Supplier<R> supplier,
       ObjLongConsumer<R> accumulator,
       BiConsumer<R,R> combiner)Performs a mutable
 reduction operation on the elements of this stream. | 
| static <T,A,R> Collector<T,A,R> | Collector. of(Supplier<A> supplier,
  BiConsumer<A,T> accumulator,
  BinaryOperator<A> combiner,
  Function<A,R> finisher,
  Collector.Characteristics... characteristics)Returns a new  Collectordescribed by the givensupplier,accumulator,combiner, andfinisherfunctions. | 
| static <T,R> Collector<T,R,R> | Collector. of(Supplier<R> supplier,
  BiConsumer<R,T> accumulator,
  BinaryOperator<R> combiner,
  Collector.Characteristics... characteristics)Returns a new  Collectordescribed by the givensupplier,accumulator, andcombinerfunctions. | 
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