Interface DoubleToDoubleFunction

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 DoubleToDoubleFunction
A function that accepts a double and returns a double.
Since:
1.2

  • Method Summary

    Modifier and Type
    Method
    Description
    double
    apply(double e)
    Applies the function.
    static DoubleToDoubleFunction
    identity()
    Returns the double identity function.

  • Method Details

    • apply

      double apply(double e)
      Applies the function.
      Parameters:
      e - The argument.
      Returns:
      The result.

    • identity

      static DoubleToDoubleFunction identity()
      Returns the double identity function. The identity function always returns the input argument.
      Returns:
      The identity function.