java.util.function

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 Summary

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

    • Method Detail

      • apply

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