public class Driver
{
    public static void main (String [] args)
    {
	Manager aManager = new Manager();
	
	// Display: Empty listt
	System.out.println("Part I: display empty list");
	aManager.display();
	System.out.println();

	// Destroy list
	System.out.println("Part II: erasing the entire list and displaying the empty list");
	aManager.eraseList();
	aManager.display();
	System.out.println();

	// Trying to remove element when there is nothing to remove.
	System.out.println("Part III: removing elments from an empty list");
	aManager.remove();
	System.out.println();

	// Add 3 books
	System.out.println("Part IV: adding elements and displaying non-empty list");
	aManager.add();
	aManager.add();
	// Display: non-empty list
	aManager.display();
	System.out.println();

	// Removing elements (both cases covered: 1)element to be removed is the first element
	// 2) element to be removed is any element but the first.
	// JT's note: there's 3 calls to remove when 2 elements added previously so one of the times
	// that remove is called it should show an error message that the list is already empty.
	System.out.println("Part V: removing elements from a non-empty list");
	aManager.remove();
	aManager.remove();
	aManager.remove();
	aManager.display();
	System.out.println();

	// Add some books and display list in order but do it recursively.
	System.out.println("Part VI: displaying list recursively");
	System.out.println("Recursive display of list: empty list");
	aManager.displayRecursive();
	aManager.add();
	aManager.add();
	System.out.println("Recursive display of list: non-empty list");
	aManager.displayRecursive();
	System.out.println();
    }
}