3. Create a class called ArrayOfItems that extends AbstractItems.
a. Create a constructor that takes an integer parameter called size and use it to create an Object array of that size to hold your items.
b. Use the array to implement the remaining abstract methods inherited from the Items class: add, size, and get. Note that size should return the number of items that have been added to the array, not the size of the array. In other words, if your initial array is large enough to hold 10 items, but only 2 items have been added, your size method should return 2, not 10. Once the array is full, the add method should ignore additional values.
c. You should include a main method to test the addAll and toString methods as well as the add, get, and size methods.
4. Create a class called Node. A Node has two instance variables.
a. An Object named item.
b. A reference to another Node called next.
Create the appropriate accessors and mutators for both variables.
