compact1, compact2, compact3
java.util.function
Interface BiFunction<T,U,R>
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- Type Parameters:
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T- the type of the first argument to the function -
U- the type of the second argument to the function -
R- 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 ofFunction.This is a functional interface whose functional method is
apply(Object, Object).- Since:
- 1.8
- See Also:
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Function
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Method Summary
All Methods Instance Methods Abstract Methods Default Methods Modifier and Type Method and Description default <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 theafterfunction to the result.Rapply(T t, U u)Applies this function to the given arguments.
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Method Detail
apply
R apply(T t, U u)
Applies this function to the given arguments.- Parameters:
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t- the first function argument -
u- the second function argument - Returns:
- the function result
andThen
default <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 theafterfunction to the result. If evaluation of either function throws an exception, it is relayed to the caller of the composed function.- Type Parameters:
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V- the type of output of theafterfunction, and of the composed function - Parameters:
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after- the function to apply after this function is applied - Returns:
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a composed function that first applies this function and then applies the
afterfunction - Throws:
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NullPointerException- if after is null
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