DoubleConsumer (Java SE 26 & JDK 26)
Description: declaration: module: java.base, package: java.util.function, interface: DoubleConsumer
Keywords: java.util.function.DoubleConsumer interface

# Interface DoubleConsumer

All Known Subinterfaces:
  `DoubleStream.Builder`

All Known Implementing Classes:
  `DoubleSummaryStatistics`

Functional Interface:
  This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface public interface DoubleConsumer
Represents an operation that accepts a single `double`-valued argument and returns no result. This is the primitive type specialization of `Consumer` for `double`. Unlike most other functional interfaces, `DoubleConsumer` is expected to operate via side-effects.

This is a functional interface whose functional method is `accept(double)`.

Since:
  1.8
See Also:
  - `Consumer`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `void`
  `accept(double value)`
  Performs this operation on the given argument.
  `default DoubleConsumer`
  `andThen(DoubleConsumer after)`
  Returns a composed `DoubleConsumer` that performs, in sequence, this operation followed by the `after` operation.

- ## Method Details

  - ### accept

    void accept(double value)
    Performs this operation on the given argument.
    Parameters:
      `value` - the input argument

  - ### andThen

    default DoubleConsumer andThen(DoubleConsumer after)
    Returns a composed `DoubleConsumer` that performs, in sequence, this operation followed by the `after` operation. If performing either operation throws an exception, it is relayed to the caller of the composed operation. If performing this operation throws an exception, the `after` operation will not be performed.
    Parameters:
      `after` - the operation to perform after this operation
    Returns:
      a composed `DoubleConsumer` that performs in sequence this operation followed by the `after` operation
    Throws:
      `NullPointerException` - if `after` is null