Question

/*
* Purpose: Test an implementation of an array-based list ADT.
* To demonstrate the use of "ListArrayBased" the project driver
* class will populate the list, then invoke various operations
* of "ListArrayBased".
*/
import java.util.Scanner;

public class ListDriver {

   /*
   * main
   *
   * An array based list is populated with data that is stored
   * in a string array. User input is retrieved from that std in.
   * A text based menu is displayed that contains a number of options.
   * The user is prompted to choose one of the available options:
   * (1) Build List, (2) Add item, (3) Remove item, (4) Remove all items,
   * or (5) done. The switch statement manages calling the
   * appropriate method based on the option chosen by the user, and
   * prompts the user for further input as required Program terminates
   * if user chooses option (5). If the user chooses an option that is
   * not in the menu, a message telling the user to choose an appropriate
   * option is written to std out, followed by the options menu.
   */
   public static void main(String[] args)
   {
       String[] dataItems = {"milk","eggs","butter","apples","bread","chicken"};

       // TO DO: add code here
              
   } // end of main method
  
   /*
   * Displays the options menu, including the prompt
   * for the user
   */
   public void displayMenu()
   {
       // TODO: add code here
   }
  
   /*
   * displayStatus
   *
   * displays information about the state of
   * the list
   *
   * Preconditions: a reference to a list
   *
   * Postconditions:
   * "List empty: B" where B is either TRUE or FALSE
   * and "Size of list: n" where n is the size of
   * the list is written to std out.
   */
   public void displayStatus(ListArrayBased list)
   {
       // TO DO: add code here
   }
  
   /*
   * displayList
   *
   * Precondition: a reference to a list
   *
   * Postcondition: list is displayed on std out
   */
   public void displayList(ListArrayBased list)
   {
       // TO DO: add code here
   }
  
   /*
   * buildList
   *
   * Precondition: a reference to a list and an string array
   * of items to be address to the list
   *
   * Postcondition: items stored the string array are added
   * to the list.
   */
   public void buildList(ListArrayBased list, String[] items)
   {
       // TO DO: add code here
   }

   /*
   * addItem
   *
   * Precondition: a reference to a list, a String
   * representing a grocery item, and the integer
   * pos is the position in the list
   *
   * Postcondition: an item is added to the list at
   * position pos.
   */
   public void addItem(ListArrayBased list, String item, int pos)
   {          
       // TO DO: add code here      
   }
  
   /*
   * removeItem
   *
   * Precondition: a reference to a list and
   * int pos;
   *
   * Postcondition: item is removed from the list by its
   * position pos.
   */
   public void removeItem(ListArrayBased list, int pos)
   {      
       // TO DO: add code here      
   }
  
   /*
   * removeAllItems
   *
   * Precondition: a reference to a list
   *
   * Postcondition: all items currently stored in the list
   * are removed
   */
   public void removeAllItems(ListArrayBased list)
   {
       // TO DO: add code here
   }
      
} // end of class ListArrayBasedDriver