package Comparators; import java.io.Serializable; import java.util.Comparator; import Model.Product; /** * The products are ordered in the TreeSet by their names(alphabetical order); * */ public class ProductComparator implements Comparator<Product>, Serializable{ private static final long serialVersionUID = 1L; @Override public int compare(Product p1, Product p2) { return p1.getName().compareTo(p2.getName()); } }