Module java.base
Package java.util.function

# Interface LongConsumer

All Known Subinterfaces:
  `LongStream.Builder`

All Known Implementing Classes:
  `LongSummaryStatistics`

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 LongConsumer
Represents an operation that accepts a single `long`-valued argument and returns no result. This is the primitive type specialization of `Consumer` for `long`. Unlike most other functional interfaces, `LongConsumer` is expected to operate via side-effects.

This is a functional interface whose functional method is `accept(long)`.

Since:
  1.8
See Also:
  - `Consumer`

## Method Summary

Modifier and Type
Method
Description
`void`
`accept(long value)`
Performs this operation on the given argument.
`default LongConsumer`
`andThen(LongConsumer after)`
Returns a composed `LongConsumer` that performs, in sequence, this operation followed by the `after` operation.

## Method Details

### accept

void accept(long value)
Performs this operation on the given argument.

Parameters:
  `value` - the input argument

### andThen

default LongConsumer andThen(LongConsumer after)
Returns a composed `LongConsumer` 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 `LongConsumer` that performs in sequence this operation followed by the `after` operation
Throws:
  `NullPointerException` - if `after` is null