//: c13:SerialNumberGenerator.java
// From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002
// www.BruceEckel.com. See copyright notice in CopyRight.txt.

public class SerialNumberGenerator {
  private static volatile int serialNumber = 0;
  public static int nextSerialNumber() {
    return serialNumber++;
  }
} ///:~