Main.java Source code

Java tutorial

Introduction

Here is the source code for Main.java

Source

import java.util.OptionalLong;
import java.util.stream.LongStream;

public class Main {
    public static void main(String[] args) {
        LongStream b = LongStream.of(1L, 2L, Long.MAX_VALUE, Long.MIN_VALUE);
        OptionalLong o = b.findFirst();

        if (o.isPresent()) {
            System.out.println(o.getAsLong());
        } else {
            System.out.println("no value");
        }
    }
}