act

College of Computer Studies
Laboratory Activity Form

Course Number	CCS 227
Course Title	OOP in Java
Topics Covered:	Class definition, toString(), equals(Object obj)
Objectives:	Implement a class in Java
Description

            Create a class called Product for representing a certain item for sale in a grocery store.
•	Each object of class Product should include the following data members:
•	An integer product code
•	A String representing the name of the product
•	A float value representing the unit cost of the product
•	An integer value representing the number of items on stock.

•	Try to include a static data member called counter which is initially 1, every time a new product is created, the value of counter is used as the product code, then the counter is incremented.

•	Include a constructor with the ff. signature.
Product(String name,float cost,int stock)
•	name is the name of the product, cost is the unit cost and stock  is the initial number of stock (inventory). (Example, there are 10 safeguard soap each costing 20.00)

•	Include the following methods:

                  public int getCode();
                  public String getName();
                  public float getCost();
                  public int getStock();

public boolean sell(int count)
•	Used to sell a product.  count represents the number of items to be bought.  Note that the number of items should be checked and decreased if it is sufficient with the number of items to be bought. This represents the sale of this product, represents a decrease in inventory.
•	This method returns true if there is sufficient stock available, otherwise should return false.

public void purchase(int count)
•	Allows the operator of the business to purchase additional stock – an increase in inventory. The parameter passed increases stock on hand.

public void priceIncrease(float rate)
•	Increases the cost of a product based on the parameter rate (percentage).

public String toString()
•	Returns a string representation of the Product

public boolean equals(Object obj)
•	Two products are equal if they have the same code and the same name

In order to test the Product class, include a simple main method that creates a Product object and calls the different methods of the class.