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<String> optional = Optional.of("bam");

        optional.isPresent(); // true
        optional.get(); // "bam"
        optional.orElse("fallback"); // "bam"

        optional.ifPresent((s) -> System.out.println(s.charAt(0))); // "b"
    }

}