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pav-90 [236]
3 years ago
8

The establishment called ABC Enterprise requires a Java program to keep a database of the inventory of the products that it sell

s. Each product is identified by its manufacturer, its name, the quantity, and unit price. Note: a manufacturer is characterized by its company’s name and address In addition to storing the information, the program should be able to make updates to the quantity and/or the price as time goes on. That is, when a sale is made, the quantity of that product must be reduced; similarly, when a product is re-ordered, the quantity of that product must be increased. Also, when there is a change in the price of a product, the price must be changed. The change must be interpreted as a replacement of the value. New products may be added to the inventory at any time; also, a product may be removed from the inventory at any time. Maintain a separate list the products that have been deleted from the database of active products.
Your program must be able to produce three kinds of reports, namely:

(a) Locate a single product and display its name, price and quantity alone.

(b) The inventory report should be structured as follows:

Product PurchaseDate Quantity Price Manufacturer State

Telephone 01/20/2013 10 254.99 Motorola FL

Computer 01/06/2013 15 756.99 CBS NY

: : : : : :

: : : : : :

(c) A list of the deleted products should be structured as follows:.

Product Date Manufacturer

Paper reams 01/20/2013 Morgan Jewelry

: : :

In your design, convince yourself that you need a minimum of four classes, not including the test class – Product, Manufacturer, Address, and Database. You may use the class called GetData.java, Listing 1.6 (in the textbook) , for inputting the data. Use a scrollable panes to display your output.
Computers and Technology
1 answer:
Alexandra [31]3 years ago
4 0

Answer:

// GetData.java

import javax.swing.JOptionPane;

public class GetData

{

  public static double getDouble(String s)

  {

      return Double.parseDouble(getWord(s));

  }

  public static int getInt(String s)

  {

      return Integer.parseInt(getWord(s));

  }

  public static String getWord(String s)

  {

      return JOptionPane.showInputDialog(s);

  }

  public static String getString(String s)

  {

      return JOptionPane.showInputDialog(s);

  }

}

// Address.java

public class Address

{

  private String street, city, state, zip;

  public Address(String str, String city, String st, String zip)

  {

      street = str;

      this.city = city;

      state = st;

      this.zip = zip;

  }

  public String getStreet()

  {

      return street;

  }

 

  public String getCity()

  {

      return city;

  }

  public String getState()

  {

      return state;

  }

  public String getZip()

  {

      return zip;

  }

}

// Manufacturer.java

public class Manufacturer

{

  private String companyName;

  private Address companyAddress;

 

  public Manufacturer()

  {

      this.companyName = "";

      this.companyAddress = null;

  }

 

  public Manufacturer(String compName, Address address)

  {

      this.companyName = compName;

      this.companyAddress = address;

  }

 

  public String getCompanyName()

  {

      return companyName;

  }

 

  public void setCompanyName(String companyName)

  {

      this.companyName = companyName;

  }

 

  public Address getCompanyAddress()

  {

      return companyAddress;

  }

 

  public void setCompanyAddress(Address address)

  {

      this.companyAddress = address;

  }

}

// Product.java

import java.text.SimpleDateFormat;

import java.util.Date;

public class Product

{

 

  SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy");

 

 

  Manufacturer manufacture;

 

 

  String productName;

 

 

  int quantity;

 

 

  double unitPrice;

 

 

  Date productCreated;

 

 

  public Product()

  {

      this.productName = "";

      this.quantity = 0;

      this.unitPrice = 0.0;

      this.productCreated = null;

      this.manufacture = null;

  }

 

  public Product(String prodName, int quantity, double unitPrice,

                        Date productCreated, Manufacturer manufact)

  {

      this.productName = prodName;

      this.quantity = quantity;

      this.unitPrice = unitPrice;

      this.productCreated = productCreated;

      this.manufacture = manufact;

  }

 

 

  public Date getProductCreated()

  {

      return productCreated;

  }

 

 

  public void setProductCreated(Date productCreated)

  {

      this.productCreated = productCreated;

  }

 

  // to get the Manufacturer object

  public Manufacturer getManufacture()

  {

      return manufacture;

  }

 

  // to set the Manufacturer object

  public void setManufacture(Manufacturer manufacture)

  {

      this.manufacture = manufacture;

  }

 

  // to get the name of the product

  public String getProductName()

  {

      return productName;

  }

 

  // to set the name of the product

  public void setProductName(String prodName)

  {

      this.productName = prodName;

  }

 

  // to get the quantity of the product

  public int getQuantity()

  {

      return quantity;

  }

 

  // to set the quantity of the product

  public void setQuantity(int quantity)

  {

      this.quantity = quantity;

  }

 

  // to get the unit price of the product

  public double getUnitPrice()

  {

      return unitPrice;

  }

 

  // to set the unit price of product

  public void setUnitPrice(double unitPrice)

  {

      this.unitPrice = unitPrice;

  }

 

  // to update the quantity of the product

  public void upDateQuantity(int quantity_upDate)

  {

      quantity += quantity_upDate;

  }

 

  // to update the price of the product

  public void upDatePrice(double price_upDate)

  {

      this.unitPrice = price_upDate;

  }

 

 

  public String getProductInfomation()

  {

      String result = "";

      result += String.format("%-30s", productName);

      String dateForm = sdf.format(productCreated);

      result += String.format("\t %s", dateForm);

      result += String.format("%10d", quantity);

      result += String.format("\t%15.2f", unitPrice);

      result += String.format("\t%15s",

                          manufacture.getCompanyName());

      result += String.format("\t%20s",

                 manufacture.getCompanyAddress().getState());

      return result;

  }  

}

Explanation:

  • Create a manufacturer class to store and get information about company name and company address.
  • Create a product class to hold the manufacturer object, product name and other relevant information.
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