import java.util.Scanner;

public class Driver
{
    public static void main(String [] args)
    {
        Manager listManager = new Manager();
        Scanner in = new Scanner(System.in);

        /* First list operation: display list */
        // Display case 1: Empty list
        listManager.display();

        // Display case 2: Non-empty list
        listManager.add();
        listManager.add();
        listManager.add();
        listManager.display();

        /* Second list operation: destroy entire list */
	   listManager.eraseList();
	   listManager.display();


        /* Third list operation: add/insert */
        listManager.add();  // Add to empty list
        listManager.display();
        System.out.println();

        listManager.add();  // Add to 1 node list
	   listManager.display();
        System.out.println();

        listManager.add();  // Add to 2 node list
	   listManager.display();
        System.out.println();
        System.out.print("Hit enter to continue");
        in.nextLine();

        /* Fourth list operation: remove/delete */

        // Case 1
        listManager.eraseList();  // Blows away entire list
        listManager.display();
        System.out.println("List empty, calling remove()");
        listManager.remove();     // Remove element from empty

        // Case 2A: remove first node
        listManager.add();  
        listManager.add();  
        listManager.add();  
        listManager.remove(); 
	   listManager.display();
        System.out.print("Hit enter to continue");
        in.nextLine();

        // Case 2B: remove any but first
        listManager.add(); // make list 3 elements again
        listManager.remove();
	   listManager.display();
        System.out.print("Hit enter to continue");
        in.nextLine();

        // Case 3: no match
        listManager.remove();
	   listManager.display();
        System.out.print("Hit enter to continue [rec display coming]");
        in.nextLine();

        // Recursive display: extra section, end of list section
        listManager.displayRecursive();
        // Advanced application of recursion: extra practice
        //listManager.displayReverse();
    }
}