BiFunction

  • BiFunction represents a function that accepts two arguments and produces a result.

  • It is a functional interface with a primary method apply(Object, Object) that executes the function's logic.

  • The andThen method allows chaining another function to be applied to the result of the initial BiFunction.

  • BiFunction is a specialization of the Function interface, specifically designed for two-argument functions.
public interface BiFunction
Known Indirect Subclasses

Represents a function that accepts two arguments and produces a result. This is the two-arity specialization of Function.

This is a functional interface whose functional method is apply(Object, Object).

See Also

Public Method Summary

<V> BiFunction<T, U, V>
andThen(Function<? super R, ? extends V> after)
Returns a composed function that first applies this function to its input, and then applies the after function to the result.
abstract R
apply(T t, U u)
Applies this function to the given arguments.

Public Methods

public BiFunction<T, U, V> andThen (Function<? super R, ? extends V> after)

Returns a composed function that first applies this function to its input, and then applies the after function to the result. If evaluation of either function throws an exception, it is relayed to the caller of the composed function.

Parameters
after the function to apply after this function is applied
Returns
  • a composed function that first applies this function and then applies the after function
Throws
NullPointerException if after is null

public abstract R apply (T t, U u)

Applies this function to the given arguments.

Parameters
t the first function argument
u the second function argument
Returns
  • the function result