GUI First Assignment-DUE 8/1/08

[ljk8950]

This is my first GUI assignement which I have included the instructions below. I am having trouble starting this assignment. I am an online student and I usually have to wait 24 hours or longer for the teacher to respond to my questions. Therefore, I am hoping someong can point me in the right direction. These are the things I am confused on: Where do I include the GUI info in my program?, Do I have to make changes to the existing code?, Are the GUI pieces to be part of the main class?, or Are the GUI pieces suppose to be a classe of there own? I will be eternally grateful to anyone who can answer these questions for me. I have also submitted my existing program.

Assignment Instructions:
Modify the Inventory Program to use a GUI. The GUI should display the information one product at a time, including the item number, the name of the product, the number of units in stock, the price of each unit, and the value of the inventory of that product. In addition, the GUI should display the value of the entire inventory, the additional attribute, and the restocking fee.

// CheckPoint:  InventoryProgramPart3.java
// Week 6
// This program calculates inventory value

import java.util.Scanner;
import java.util.Arrays;

public class InventoryProgramPart3
{

     // main method begins program execution
     public static void main(String args[] )
     {
          // create Scanner to obtain input from command window
          Scanner input = new Scanner( System.in );

          // display a welcome message to the InventoryProgramPart3 user
          System.out.println( "Welcome to Inventory Program Part 3!" );

          // office supplies
          
          supplies[] supplies = new supplies[100]; // an array of 100 supplies
          manufacturer[] manufacturer = new manufacturer[100];
                
          manufacturer notepads = new manufacturer
               ( 4000, "notepads", 60, 2.75, "Ampad" );
          manufacturer pencils = new manufacturer
               ( 5000, "pencils", 75, 1.25, "Bic" );
          manufacturer folders = new manufacturer
               ( 2000, "folders", 30, 4.75, "3M" );
          manufacturer envelopes = new manufacturer
               ( 1000, "envelopes", 15, 5.25, "Universal" );
          manufacturer markers = new manufacturer
               ( 3000, "markers", 45, 3.50, "Sanford" );
                             
          // display the inventories one at a time
          envelopes.showInventory();
          folders.showInventory();
          markers.showInventory();
          notepads.showInventory();
          pencils.showInventory();

          // sort supplies by name
          for ( int i = 0; i < args.length; i++ )
          System.out.println( args[i] + ", " );

          double array[] = { 82.69, 149.63, 165.38, 173.25, 98.44 };
          double total = 0;

          // add each element's value to total
          for ( int counter = 0; counter < array.length; counter++)
               total += array[ counter ];
          System.out.printf( "\nTotal inventory value is: $%.2f\n", total );

          System.out.println( "\nThank you for using Inventory Program Part 3!\n" );
          
     } // end method main

} // end class InventoryProgramPart3     

// Office Supplies
class supplies
{
     public int suppliesNumber;
     public String suppliesName = new String();
     public int suppliesUnits;
     public double suppliesPrice;

     // set supplies number
     public void setSuppliesNumber( int number )
     {
          this.suppliesNumber = number;
     } // end method set supplies number

     // return supplies number
     public int getSuppliesNumber()
     {
          return suppliesNumber;
     } // end method get supplies number

     // set supplies name
     public void setSuppliesName( String name )
     {
          this.suppliesName = name;
     } // end method set supplies name

     // return supplies name
     public String getSuppliesName()
     {
          return suppliesName;
     } // end method get supplies name

     // set supplies in stock
     public void setSuppliesUnits( int units )
     {
          this.suppliesUnits = units;
     } // end method set supplies units

     // return supplies units
     public int getSuppliesUnits()
     {
          return suppliesUnits;
     } // end method get supplies units

     // set supplies price
     public void setSuppliesPrice( double price )
     {
          this.suppliesPrice = price;
     } // end method set supplies price

     // return supplies price
     public double getSuppliesPrice()
     { 
          return suppliesPrice;
     } // end method get supplies price

     // calculate supplies inventory value
     public double getValue()
     {
          return suppliesUnits * suppliesPrice;
     } // end method supplies inventory value 

    // four-argument constructor
     supplies( int number, String name, int units, double price )
     { 
          suppliesNumber = number;
          suppliesName = name;
          suppliesUnits = units;
          suppliesPrice = price;
     } // end four-argument constructor

    // display inventory
     public void showInventory()
     {
          System.out.println(); // outputs blank line

          System.out.println( "Product Number:  "+suppliesNumber );
          System.out.println( "Product Name:  "+suppliesName );
          System.out.println( "Units in Stock:  "+suppliesUnits );
          System.out.printf( "Unit Price:  $%.2f", suppliesPrice );

          // value() method and display the value
          System.out.printf( "\nInventory value of "+suppliesName+ " is = $%.2f\n",
               getValue() );                           
  
    } // end display inventory

} // end class supplies

class manufacturer extends supplies
{
     // holds the supplies manufacturer
     private String suppliesManufacturer;

     // five-argument constructor
     public manufacturer( int number, String name, int units,
          double price, String manufacturer )
     {
          super( number, name, units, price );
          // validate and store supplies manufacturer
          setSuppliesManufacturer( manufacturer ); 
     } // end five-argument constructor

     // set supplies manufacturer
     public void setSuppliesManufacturer( String manufacturer )
     {
          this.suppliesManufacturer = manufacturer;
     } // end method set supplies manufacturer

     // return supplies manufacturer
     public String getSuppliesManufacturer()
     {
         return suppliesManufacturer;
     } // end method get supplies manufacturer

     // calculate restocking fee
     public double getRestockingFee()
     {
          return super.getValue() * 0.05;
     } //end method calculate restocking fee
          
     //return String representation of suppliesManufacturer
     public String toString()
     {
          String formatString = "Manufacturer:  %s";
          formatString += "\nRestocking Fee:  $%.2f\n";
          formatString = String.format( formatString, suppliesManufacturer,
               super.getValue() * 0.05 );          
          return( formatString );
     } // end toString()

     // display inventory
     public void showInventory()
     {
          super.showInventory();
          System.out.println( toString() );
          
          // Display value plus restocking fee
          System.out.printf( "\nTotal Inventory value of "+suppliesName+ " is = $%.2f\n",
               super.getValue() * 0.05 + super.getValue() );     

     } // end method display inventory

} // end class manufacturer

[Norm]

Do a search on this forum for JFrame. That should bring up plenty of coding examples. Most GUI programs use the JFrame class.

[Eranga]

At least on Google. You can find a lots of such similar examples on the web. Seems to me this is the first time you are going to work with GUI, so you have start from the beginning. I don't think most of our members have enough time to do that for you. So make an attempt at least and post your any question if you stuck with.