DoubleConsumer (Java Platform SE 8 ) (original) (raw)

• 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 ofConsumer 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

  All Methods Instance Methods Abstract Methods Default Methods

  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 Detail

     * #### accept  
     void accept(double value)  
     Performs this operation on the given argument.  
     Parameters:  
     `value` \- the input argument  
     * #### andThen  
     default [DoubleConsumer](../../../java/util/function/DoubleConsumer.html "interface in java.util.function") andThen([DoubleConsumer](../../../java/util/function/DoubleConsumer.html "interface in java.util.function") 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](../../../java/lang/NullPointerException.html "class in java.lang")` \- if `after` is null

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