Java Lambda - DoubleToLongFunction example

DoubleToLongFunction represents a function that accepts a double-valued argument and produces a long-valued result. This is the double-to-long primitive specialization for Function.


  1. DoubleToLongFunction applyAsLong


The following example shows how to use DoubleToLongFunction.

import java.util.function.DoubleToLongFunction;

public class Main {

  public static void main(String[] args) {
    DoubleToLongFunction dl = (x) -> {return Long.MAX_VALUE - (long)x;};

The code above generates the following result.