Java Lambda - DoubleToLongFunction applyAsLong example

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DoubleToLongFunction applyAsLong applies the functional interface to the given argument.

Syntax

applyAsLong has the following syntax.

long applyAsLong(double value)

Example

The following example shows how to use applyAsLong.

import java.util.function.DoubleToLongFunction;

public class Main {

  public static void main(String[] args) {
    DoubleToLongFunction dl = (x) -> {return Long.MAX_VALUE - (long)x;};
    System.out.println(dl.applyAsLong(3.14));
  }
}

The code above generates the following result.

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