// equalshashcode/Groundhog.java

// (c)2017 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.

// Looks plausible, but doesn't work as a HashMap key

public class Groundhog {

protected int number;

public Groundhog(int n) { number = n; }

@Override

public String toString() {

return "Groundhog #" + number;

}

}