// generics/ByteSet.java // (c)2021 MindView LLC: see Copyright.txt // We make no guarantees that this code is fit for any purpose. // Visit http://OnJava8.com for more book information. import java.util.*; public class ByteSet { Byte[] possibles = { 1,2,3,4,5,6,7,8,9 }; Set mySet = new HashSet<>(Arrays.asList(possibles)); // But you can't do this: // Set mySet2 = new HashSet<>( // Arrays.asList(1,2,3,4,5,6,7,8,9)); }