package Chapter10;

public class House implements Cloneable, Comparable {
 private int id;
 private double area;
 private java.util.Date whenBuilt;

 public House(int id, double area) {
 this.id = id;
 this.area = area;
 whenBuilt = new java.util.Date();
 }

 public double getId() {
 return id;
 }

 public double getArea() {
 return area;
 }

 public java.util.Date getWhenBuilt() {
 return whenBuilt;
 }

 /** Override the protected clone method defined in the Object
 class, and strengthen its accessibility */
 public Object clone() {
 try {
 return super.clone();
 }
 catch (CloneNotSupportedException ex) {
 return null;
 }
 }

 /** Implement the compareTo method defined in Comparable */
 public int compareTo(Object o) {
 if (area > ((House)o).area)
 return 1;
 else if (area < ((House)o).area)
 return -1;
 else
 return 0;
 }
}