Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.util.Optional;

public class Main {

    public static void main(String[] args) {
        Optional<Integer> value = Optional.empty();

        System.out.println(value.orElse(42));
        System.out.println(value.isPresent());
        System.out.println(value.get());
    }
}