A Safe object will have a state and possibly contain some items; however, because it is quite a small safe, it can only contain a limited number of items.

a$.$Next, create a public class called Safe in the same BlueJ project, to simulate the behaviour of a real safe. You will develop this class in the following parts.

Edit the class comment so that it includes your own name and the date and a description of the class Safe. Remove the sample field, constructor, and method.