Java Lambda - DoubleUnaryOperator applyAsDouble example

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DoubleUnaryOperator applyAsDouble applies this operator to the given operand.

Syntax

applyAsDouble has the following syntax.

double applyAsDouble(double operand)

Example

The following example shows how to use applyAsDouble.

import java.util.function.DoubleUnaryOperator;

public class Main {

  public static void main(String[] args) {
    DoubleUnaryOperator dl = (x) -> {return x*x;};
    System.out.println(dl.applyAsDouble(3.14));
  }
}

The code above generates the following result.

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