程序包 java.util.function

接口 Consumer<T>

类型参数:

T - the type of the input to the operation

所有已知子接口:

Stream.Builder<T>

函数接口:

这是一个函数接口, 因此可用作 lambda 表达式或方法引用的赋值目标。

@FunctionalInterface
public interface Consumer<T>

Represents an operation that accepts a single input argument and returns no result. Unlike most other functional interfaces, Consumer is expected to operate via side-effects.

This is a functional interface whose functional method is accept(java.lang.Object).

从以下版本开始:

1.8

方法概要

限定符和类型	方法	说明
void	accept(T t)	Performs this operation on the given argument.
default Consumer<T>	andThen(Consumer<? super T> after)	Returns a composed Consumer that performs, in sequence, this operation followed by the after operation.

方法详细资料

accept

void accept(T t)

Performs this operation on the given argument.

参数:

t - the input argument

andThen

default Consumer<T> andThen(Consumer<? super T> after)

Returns a composed Consumer 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.

参数:

after - the operation to perform after this operation

返回:

a composed Consumer that performs in sequence this operation followed by the after operation

抛出:

NullPointerException - if after is null