- Type Parameters:
T
- the type of the first argument to the functionU
- the type of the second argument to the functionR
- the type of the result of the function
- All Known Subinterfaces:
BinaryOperator<T>
- 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 BiFunction<T,U,R>
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)
.
- Since:
- 1.8
- See Also:
Function
-
Method Summary
Modifier and TypeMethodDescriptiondefault <V> BiFunction<T,U,V>
Returns a composed function that first applies this function to its input, and then applies theafter
function to the result.Applies this function to the given arguments.
-
Method Details
-
apply
Applies this function to the given arguments.- Parameters:
t
- the first function argumentu
- the second function argument- Returns:
- the function result
-
andThen
Returns a composed function that first applies this function to its input, and then applies theafter
function to the result. If evaluation of either function throws an exception, it is relayed to the caller of the composed function.- Type Parameters:
V
- the type of output of theafter
function, and 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
-