Added in API level 24

BiFunction

@FunctionalInterface interface BiFunction<T : Any!, U : Any!, R : Any!>

java.util.function.BiFunction

Known Direct Subclasses BinaryOperator BinaryOperator Represents an operation upon two operands of the same type, producing a result of the same type as the operands.

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(java.lang.Object,java.lang.Object).

Summary

Public methods
open BiFunction<T, U, V>!	andThen(after: Function<in R, out V>!) 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

andThen

Added in API level 24

open fun <V : Any!> andThen(after: Function<in R, out V>!): BiFunction<T, U, V>!

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
<V>	the type of output of the after function, and of the composed function
after	Function<in R, out V>!: the function to apply after this function is applied

Return
BiFunction<T, U, V>!	a composed function that first applies this function and then applies the after function

Exceptions
java.lang.NullPointerException	if after is null

apply

Added in API level 24

abstract fun apply(
    t: T, 
    u: U
): R

Applies this function to the given arguments.

Parameters
t	T: the first function argument
u	U: the second function argument

Return
R	the function result