## Uses of Interface
java.util.function.Consumer

- Packages that use Consumer
  Package | Description
  --- | ---
  java.lang |
  java.util |
  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.

- - ### Uses of Consumer in java.lang

    Methods in java.lang with parameters of type Consumer
    Modifier and Type | Method and Description
    --- | ---
    `default void` | Iterable.`forEach(Consumer<? super T> action)` Performs the given action for each element of the `Iterable` until all elements have been processed or the action throws an exception.

  - ### Uses of Consumer in java.util

    Methods in java.util with parameters of type Consumer
    Modifier and Type | Method and Description
    --- | ---
    `default void` | Spliterator.OfDouble.`forEachRemaining(Consumer<? super Double> action)` Performs the given action for each remaining element, sequentially in the current thread, until all elements have been processed or the action throws an exception.
    `default void` | PrimitiveIterator.OfDouble.`forEachRemaining(Consumer<? super Double> action)` Performs the given action for each remaining element until all elements have been processed or the action throws an exception.
    `default void` | Iterator.`forEachRemaining(Consumer<? super E> action)` Performs the given action for each remaining element until all elements have been processed or the action throws an exception.
    `default void` | Spliterator.OfInt.`forEachRemaining(Consumer<? super Integer> action)` Performs the given action for each remaining element, sequentially in the current thread, until all elements have been processed or the action throws an exception.
    `default void` | PrimitiveIterator.OfInt.`forEachRemaining(Consumer<? super Integer> action)` Performs the given action for each remaining element until all elements have been processed or the action throws an exception.
    `default void` | Spliterator.OfLong.`forEachRemaining(Consumer<? super Long> action)` Performs the given action for each remaining element, sequentially in the current thread, until all elements have been processed or the action throws an exception.
    `default void` | PrimitiveIterator.OfLong.`forEachRemaining(Consumer<? super Long> action)` Performs the given action for each remaining element until all elements have been processed or the action throws an exception.
    `default void` | Spliterator.`forEachRemaining(Consumer<? super T> action)` Performs the given action for each remaining element, sequentially in the current thread, until all elements have been processed or the action throws an exception.
    `void` | Optional.`ifPresent(Consumer<? super T> action)` If a value is present, performs the given action with the value, otherwise does nothing.
    `void` | Optional.`ifPresentOrElse(Consumer<? super T> action, Runnable emptyAction)` If a value is present, performs the given action with the value, otherwise performs the given empty-based action.
    `default boolean` | Spliterator.OfDouble.`tryAdvance(Consumer<? super Double> action)` If a remaining element exists, performs the given action on it, returning `true`; else returns `false`.
    `default boolean` | Spliterator.OfInt.`tryAdvance(Consumer<? super Integer> action)` If a remaining element exists, performs the given action on it, returning `true`; else returns `false`.
    `default boolean` | Spliterator.OfLong.`tryAdvance(Consumer<? super Long> action)` If a remaining element exists, performs the given action on it, returning `true`; else returns `false`.
    `boolean` | Spliterator.`tryAdvance(Consumer<? super T> action)` If a remaining element exists, performs the given action on it, returning `true`; else returns `false`.

  - ### Uses of Consumer in java.util.function

    Methods in java.util.function that return Consumer
    Modifier and Type | Method and Description
    --- | ---
    `default Consumer<T>` | Consumer.`andThen(Consumer<? super T> after)` Returns a composed `Consumer` that performs, in sequence, this operation followed by the `after` operation.

    Methods in java.util.function with parameters of type Consumer
    Modifier and Type | Method and Description
    --- | ---
    `default Consumer<T>` | Consumer.`andThen(Consumer<? super T> after)` Returns a composed `Consumer` that performs, in sequence, this operation followed by the `after` operation.

  - ### Uses of Consumer in java.util.stream

    Subinterfaces of Consumer in java.util.stream
    Modifier and Type | Interface and Description
    --- | ---
    `static interface` | `Stream.Builder<T>` A mutable builder for a `Stream`.

    Methods in java.util.stream with parameters of type Consumer
    Modifier and Type | Method and Description
    --- | ---
    `void` | Stream.`forEach(Consumer<? super T> action)` Performs an action for each element of this stream.
    `void` | Stream.`forEachOrdered(Consumer<? super T> action)` Performs an action for each element of this stream, in the encounter order of the stream if the stream has a defined encounter order.
    `Stream<T>` | Stream.`peek(Consumer<? super T> action)` Returns a stream consisting of the elements of this stream, additionally performing the provided action on each element as elements are consumed from the resulting stream.

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