// understandingcollections/SpringDetector2.java
// (c)2016 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.
// A working key

public class SpringDetector2 {
  public static void
  main(String[] args) throws Exception {
    SpringDetector.detectSpring(Groundhog2.class);
  }
}
/* Output:
map = {Groundhog #0=Early Spring!, Groundhog #1=Early
Spring!, Groundhog #2=Early Spring!, Groundhog #3=Early
Spring!, Groundhog #4=Early Spring!, Groundhog #5=Early
Spring!, Groundhog #6=Early Spring!, Groundhog #7=Six more
weeks of Winter!, Groundhog #8=Six more weeks of Winter!,
Groundhog #9=Six more weeks of Winter!}
Looking up prediction for Groundhog #3
Early Spring!
*/