Using Java:

Write a program to manage an inventory. Create a Product class Each product in the inventory contains a product name, an amount in stock, and a unit price. Provide default and parameterized constructors, accessor, and modifier functions.

Input:

The data should be read from a file and stored in an array of Product. Assume product names do not contain blanks. Size the initial array to 50 elements; code may assume no more than 50 products will be inserted as the program runs. File inventory.txt on Blackboard contains the initial data.

inventory.txt:

Mop 15 5.99 Pail 10 3.99 Hammer 1 7.99 Wrench 15 6.99 Pen 50 0.99 Pad 10 3.99 Calendar 0 2.99

This program will study the unordered array algorithms of sequential search, insert, and remove.

Processing: Use a loop to present a simple menu of choices to the user.

a) Edit the amount in stock of a product. If the item is found, report the name and the new amount in stock. If it is not found, report the name and a message that the item was not found.

b) Insert a new product with initial amount of stock and unit price. Report the name with a message it was successfully inserted. If the name already exists, report the name and a message that the item could not be inserted.

c) Remove a product. If the removal is successful, report the name and a message that the item was successfully removed. If the item is not found in the array, report the name and a message that the item could not be removed.

d) Display the inventory, listing each products name, number in stock, and unit price on separate lines using field widths to create a neat table. Under the table display the total worth of the inventory, computed as the sum of each products amount in stock times its unit price.