Viewing: docs.oracle.com

Type Parameters:

T - the type of the first argument to the operation

U - the type of the second argument to the operation

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 BiConsumer<T,U>
```
Represents an operation that accepts two input arguments and returns no result. This is the two-arity specialization of Consumer. Unlike most other functional interfaces, BiConsumer is expected to operate via side-effects.
This is a functional interface whose functional method is accept(Object, Object).

Since:

1.8

See Also:

Consumer

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`void`	`accept(T t, U u)`	Performs this operation on the given arguments.
`default BiConsumer<T,U>`	`andThen(BiConsumer<? super T,? super U> after)`	Returns a composed `BiConsumer` that performs, in sequence, this operation followed by the `after` operation.

- Method Detail
  - accept
```
void accept(T t,
            U u)
```
    Performs this operation on the given arguments.
    
    Parameters:
    
    t - the first input argument
    
    u - the second input argument
  - andThen
```
default BiConsumer<T,U> andThen(BiConsumer<? super T,? super U> after)
```
    Returns a composed BiConsumer 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 BiConsumer that performs in sequence this operation followed by the after operation
    
    Throws:
    
    NullPointerException - if after is null

Report a bug or suggest an enhancement
For further API reference and developer documentation see the Java SE Documentation, which contains more detailed, developer-targeted descriptions with conceptual overviews, definitions of terms, workarounds, and working code examples.
Java is a trademark or registered trademark of Oracle and/or its affiliates in the US and other countries.
Copyright © 1993, 2025, Oracle and/or its affiliates, 500 Oracle Parkway, Redwood Shores, CA 94065 USA.
All rights reserved. Use is subject to license terms and the documentation redistribution policy.

Interface BiConsumer<T,​U>

Method Summary

Method Detail

accept

andThen

Interface BiConsumer<T,U>