Module java.base

Package java.util.function

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