Module java.base

Package java.util.function

Interface DoubleToLongFunction

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 DoubleToLongFunction

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

This is a functional interface whose functional method is applyAsLong(double).

Since:

1.8

See Also:

• Function

Method Summary

Modifier and Type	Method	Description
long	applyAsLong(double value)	Applies this function to the given argument.

Method Details

applyAsLong

long applyAsLong(double value)

Applies this function to the given argument.

Parameters:

value - the function argument

Returns:

the function result