// 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));
}