First GUI Assignment

I am looking for help getting started with my first GUI assignment. Below is the assignment instructions and my code that properly executes. This is my
second day working on this assignment and have still not written one piece of code because I do not know where to start or what the end result should look like. Can anyone get me started? Thanks for any help you can provide.

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 restocking fee.

Code:

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// 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

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Let me put it this way, you should read in the AWT / Swing forum for this post.

This is why I walked out of a major university after only seventeen hours,....

it defies comment.