LongConsumer

AI-generated Key Takeaways

• LongConsumer is a functional interface representing an operation that accepts a single long value and returns no result, often used for side-effects.

• It has two primary methods: accept(long value) to perform the operation and andThen(LongConsumer after) to chain operations sequentially.

• LongStream.Builder and LongSummaryStatistics are known indirect subclasses of this interface.

public interface LongConsumer

Known Indirect Subclasses LongStream.Builder, LongSummaryStatistics LongStream.Builder A mutable builder for a LongStream.  LongSummaryStatistics A state object for collecting statistics such as count, min, max, sum, and average.

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).

See Also

• Consumer

Public Method Summary

abstract void	accept(long value) Performs this operation on the given argument.
LongConsumer	andThen(LongConsumer after) Returns a composed LongConsumer that performs, in sequence, this operation followed by the after operation.

Public Methods

public abstract void accept (long value)

Performs this operation on the given argument.

Parameters

value	the input argument

public 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