OptionalDouble isPresent() method in Java with examples

// Java program to demonstrate
// OptionalDouble.isPresent() method

import java.util.OptionalDouble;

public class GFG {

    public static void main(String[] args)
    {

        // create a OptionalDouble
        OptionalDouble opDouble
            = OptionalDouble.of(3148.1345);

        // get value using isPresent()
        System.out.println("OptionalDouble"
                           + " has a value= "
                           + opDouble.isPresent());
    }
}

// Java program to demonstrate
// OptionalDouble.isPresent() method

import java.util.OptionalDouble;

public class GFG {

    public static void main(String[] args)
    {

        // create a OptionalDouble
        OptionalDouble opDouble
            = OptionalDouble.empty();

        // try to get that value is present or not
        boolean response = opDouble.isPresent();

        if (response)
            System.out.println("Value present");
        else
            System.out.println("Value absent");
    }
}