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added in API level 24

Consumer

public interface Consumer

java.util.function.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(Object).

Summary

Public methods

abstract 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.

Public methods

accept

added in API level 24
public abstract void accept (T t)

Performs this operation on the given argument.

Parameters
t T: the input argument

andThen

added in API level 24
public 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.

Parameters
after Consumer: the operation to perform after this operation

Returns
Consumer<T> a composed Consumer that performs in sequence this operation followed by the after operation

Throws
NullPointerException if after is null