Module java.base

Interface DoubleFunction<R>

  • Type Parameters:
    R - the type of the result of 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 DoubleFunction<R>
    Represents a function that accepts a double-valued argument and produces a result. This is the double-consuming primitive specialization for Function.

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

    Since:
    1.8
    See Also:
    Function
    • Method Detail

      • apply

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