import java.util.*;

public class TestCollections {
    static List list = new LinkedList();

    public static void main(String[] args) {
        list.add(new Book("Patterns", 12345));
        list.add(new Book("Patterns", 34567));
        list.add(new Book("Examples", 23456));

        testContains();
        testISBNSort();

        try {
            testNaturalSort();
        } catch (Throwable t) {
            System.out.println(t);
        }
    }

    static void testContains() {
        System.out.println("\nTESTING CONTAINS");

        // this is what we're looking for
        Book patterns = new Book("Patterns", 12345);

        // do we have it?
        System.out.println("We have it: " + list.contains(patterns));
    }

    static void testISBNSort() {
        System.out.println("\nTESTING ISBN SORT");

        // sort using a comparator
        Collections.sort(list, new Comparator() {
            public int compare(Object object1, Object object2) {
                Book book1 = (Book) object1;
                Book book2 = (Book) object2;

                return book1.isbn - book2.isbn;
            }
        });

        // print the collection
        Iterator i = list.iterator();
        while (i.hasNext()) {
            System.out.println(i.next());
        }
    }

    static void testNaturalSort() {
        System.out.println("\nTESTING NATURAL SORT");

        // sort if we're comparable
        Collections.sort(list);

        // print the collection
        Iterator i = list.iterator();
        while (i.hasNext()) {
            System.out.println(i.next());
        }
    }
}