BiConsumer (Java SE 9 & JDK 9 ) (original) (raw)

• Type Parameters:
  T - the type of the first argument to the operation
  U - the type of the second argument to the operation
  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 BiConsumer<T,U>
Represents an operation that accepts two input arguments and returns no result. This is the two-arity specialization of Consumer. Unlike most other functional interfaces, BiConsumer is expected to operate via side-effects.
This is a functional interface whose functional method is accept(Object, Object).
Since:
1.8
See Also:
Consumer

• • Method Summary

  All Methods Instance Methods Abstract Methods Default Methods

  Modifier and Type	Method	Description
  void	accept​(T t,U u)	Performs this operation on the given arguments.
  default BiConsumer<T,U>	andThen​(BiConsumer<? super T,? super U> after)	Returns a composed BiConsumer that performs, in sequence, this operation followed by the after operation.

• • Method Detail

     * #### accept  
     void accept​([T](../../../java/util/function/BiConsumer.html "type parameter in BiConsumer") t,  
                 [U](../../../java/util/function/BiConsumer.html "type parameter in BiConsumer") u)  
     Performs this operation on the given arguments.  
     Parameters:  
     `t` \- the first input argument  
     `u` \- the second input argument  
     * #### andThen  
     default [BiConsumer](../../../java/util/function/BiConsumer.html "interface in java.util.function")<[T](../../../java/util/function/BiConsumer.html "type parameter in BiConsumer"),[U](../../../java/util/function/BiConsumer.html "type parameter in BiConsumer")> andThen​([BiConsumer](../../../java/util/function/BiConsumer.html "interface in java.util.function")<? super [T](../../../java/util/function/BiConsumer.html "type parameter in BiConsumer"),? super [U](../../../java/util/function/BiConsumer.html "type parameter in BiConsumer")> after)  
     Returns a composed `BiConsumer` 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 `BiConsumer` 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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