Module java.base
Package java.util.function

Interface ToDoubleFunction<T>

Type Parameters:
T - the type of the input to the function
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 ToDoubleFunction<T>
Represents a function that produces a double-valued result. This is the double-producing primitive specialization for Function.

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

Since:
1.8
See Also:
Function

  • Method Summary

    Modifier and Type Method Description
    double applyAsDouble​(T value)
    Applies this function to the given argument.

  • Method Details

    • applyAsDouble

      double applyAsDouble​(T value)
      Applies this function to the given argument.
      Parameters:
      value - the function argument
      Returns:
      the function result