程序包 java.util.function

接口 LongToDoubleFunction

函数接口:

这是一个函数接口, 因此可用作 lambda 表达式或方法引用的赋值目标。

@FunctionalInterface
public interface LongToDoubleFunction

Represents a function that accepts a long-valued argument and produces a double-valued result. This is the long-to-double primitive specialization for Function.

This is a functional interface whose functional method is applyAsDouble(long).

从以下版本开始:

1.8

另请参阅:

Function

方法概要

限定符和类型	方法	说明
double	applyAsDouble(long value)	Applies this function to the given argument.

方法详细资料

applyAsDouble

double applyAsDouble(long value)

Applies this function to the given argument.

参数:

value - the function argument

返回:

the function result