max of vectors

package ch.claude_martin.foo;

import java.util.*;
import java.util.stream.Stream;

public class SomeClass {
    public static void main(String[] args) {
        final int[] v1 = { 3, 5 };
        final int[] v2 = { 3, 6 };
        final OptionalInt max = Stream.of(v1, v2).flatMapToInt(Arrays::stream).max();
        if (max.isPresent())
            System.out.println(max.getAsInt());
        else
            System.out.println("No data");
    }
}