ToDoubleBiFunction (Java SE 15 & JDK 15)
Description: declaration: module: java.base, package: java.util.function, interface: ToDoubleBiFunction
Keywords: java.util.function.ToDoubleBiFunction interface

Module java.base
Package java.util.function

# Interface ToDoubleBiFunction<T,​U>

Type Parameters:
  `T` - the type of the first argument to the function
  `U` - the type of the second argument 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 ToDoubleBiFunction<T,​U>

Represents a function that accepts two arguments and produces a double-valued result. This is the `double`-producing primitive specialization for `BiFunction`.

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

Since:
  1.8
See Also:
  `BiFunction`

- ## Method Summary

  Modifier and Type | Method | Description
  --- | --- | ---
  `double` | `applyAsDouble​(T t, U u)` | Applies this function to the given arguments.

- ## Method Details

  - ### applyAsDouble

    double applyAsDouble​(T t, U u)
    Applies this function to the given arguments.
    Parameters:
      `t` - the first function argument
      `u` - the second function argument
    Returns:
      the function result