Building a simple Note App

Purpose: Build a driver class and enhance a Notebook class with several useful ArrayList methods.

Learning Objectives:

• Refresher on ArrayList
• Practice good testing especially boundary testing;
• Using the console for output

Instuctions:

A. Using a class with an ArrayList. Here is the Notebook.java program shown in class:

import java.util.ArrayList;

public class Notebook {

private ArrayList notes;

}

Add a getter and setter for notes. Make sure that Notebook has a getter and setter for notes. Create a method numberOfNotes() that will return the size of the ArrayList. Make a driver program, NotebookTest, to test your methods.

B. Adding useful methods to Notebook. After part A, we should be able to:

get the ArrayList notes using our Notebook object's getter;

set the ArrayList notes by using our Notebook object's setter and sending it an ArrayList of Strings;

get the size of the ArrayList from our Notebook object.

But let's continue to enrich our Notebook class with the following methods:

addNote() will add an individual note to the ArrayList

deleteNote() will delete a note using its position in the ArrayList

getNoteNumber() will get the position of a note based on its value, e.g., in what position is note "Buy milk"?

getNote() will get the note text for a given position

setNote() will set (update) the note text for a given position

The following sections deal with methods that can reposition notes in the notebook. The user should specify which note to reposition by its text, and not its index position in the ArrayList.

C. Preventing duplicate notes. Modify your "add note" method above so that it will not add a duplicate value to the ArrayList..

D. Moving notes up and down. Imagine if your notes were in priority order. It might be nice to select a note and then move it up (prioritize) or down (deprioritize). Create a moveNoteUp() method that will move a note up one spot, and a corresponding moveNoteDown() method that will move a note down one spot.

E. Moving notes multiple times In your NotebookTest driver program, use a For loop to move a note up for a specified number of moves (which you will store in a variable). Set the value of this variable to 2 and test your For loop. Use the method you created in step D. Make a corresponding For loop to move a note down a specified number of times.

F. Moving notes to the top or bottom of the list. Finally, make two last methods to move a list item to the top of the list (moveNoteToTop), or the bottom of the list (moveNoteToBottom).