/**
 * A version of the place class from Assignment 1. This is quite abbreviated
 * as the point here is to show overriding of Equals especially 
 * so it is useful for generics
 * @author gtowell
 * Created: Feb 2021
 */
@SuppressWarnings("unused")
public class Place {
    // The data stored about a place
    private String zip, city, state;

    /**
     * Create an instance of Place.  Yes, the variable names are awful
     * @param z the zip code
     * @param c the city name
     * @param s the state name
     */
    public Place(String z, String c, String s) {
        zip = z;
        city = c;
        state = s;
    }
    // get accessor needs no comment
    public String getZip() {
        return zip;
    }
    // Other stuff would go here to complete the class , but is unneeded for this example

    /**
     * Override equals so that if the object being compared is another Place,
     * then you just compare zip codes. 
     * @param o the object to be compared
     */
    @Override
    public boolean equals(Object o) {
        if (o instanceof Place) {
            return zip.equals(((Place) o).getZip());
        }
        return super.equals(o);  // use the equals method from the superclass for things that are not objects
        // return false;  // Could just return false as any object that is not a place 
        // will not be equal to a place.
    }

    public static void main(String[] args) {
        // example of equals in operation
        Place p1 = new Place("19380", "a", "b");
        Place p2 = new Place("19380", "aaaa", "bbbb");
        Place p3 = new Place("19385", "a", "b");
        Integer ii = 10;
        System.out.println("p1 p2: " + p1.equals(p2));
        System.out.println("p1 p3: " + p1.equals(p3));
        System.out.println("p1 ii: " + p1.equals(ii));
        System.out.println("p2 p3: " + p2.equals(p3));

    }


}