How do I?....

**sumittyagi** · May 17 '07, 06:57 AM

Originally posted by lucky29105

I have been working on an Inventory program and I need the inventory value for each item and the total inventory value for all the items. Can someone help me out?

Code:

public class Inventory5 extends JFrame implements ActionListener
{

//Utility class for displaying the picture
private class MyPanel extends JPanel
{
	ImageIcon image = new ImageIcon("dvd.gif");
	int width = image.getIconWidth();
	int height = image.getIconHeight();
	long angle = 30;
	public MyPanel()
	{
	 super();
	}
	public void paintComponent(Graphics g)
	{
	 super.paintComponent(g);
	 Graphics2D g2d = (Graphics2D)g;
	 //g2d.rotate (Math.toRadians(angle), 40+width/2, 40+height/2);
	 g2d.drawImage(image.getImage(), 40, 40, this);
	 g2d.dispose();
	}
}//end class MyPanel

int currentIndex; //Currently displayed Item
Product[] supplies = new Product[4];
JLabel itemName ;
JLabel itemNumber;
JLabel rating;
JLabel quantity;
JLabel price;
JLabel fee;
JLabel totalValue;
JTextField itemNameField = new JTextField(20);
JTextField itemNumberField = new JTextField(20);
JTextField ratingField = new JTextField(20);
JTextField quantityField = new JTextField(20);
JTextField priceField = new JTextField(20);

JPanel display;
JPanel displayHolder;
JPanel panel;
public Inventory5()
{
makeTheDataItems();
setSize(600, 500);
setTitle("CD Inventory Program");

//make the panels
display = new JPanel();
JPanel other = new JPanel();
JPanel picture = new MyPanel();
JPanel buttons = new JPanel();
JPanel centerPanel = new JPanel();
displayHolder = new JPanel();
display.setLayout(new GridLayout(5, 3));
other.setLayout(new GridLayout(2, 1));

//make the labels
itemName = new	 JLabel("Name         :");
itemNumber = new	 JLabel("Number         :");
rating = new	 JLabel("Rating         :");
quantity = new JLabel("Quantity         :");
price = new	 JLabel("Price         :");
fee = new		JLabel("Fee         :");
totalValue = new JLabel("Total Value         :");

//Use the utility method to make the buttons
JButton first = makeButton("First");
JButton next = makeButton("Next");
JButton previous = makeButton("Previous");
JButton last = makeButton("Last");
JButton exit = makeButton("Exit");
JButton add = makeButton("Add");

//Add the labels to the display panel
display.add(itemName);
display.add(itemNumber);
display.add(rating);
display.add(quantity);
display.add(price);
display.add(fee);

//add the buttons to the buttonPanel
buttons.add(first);
buttons.add(previous);
buttons.add(next);
buttons.add(last);
buttons.add(exit);

//Add the picture panel and display to the centerPanel
displayHolder.add(display);
centerPanel.setLayout(new GridLayout(2, 1));
centerPanel.add(picture);
centerPanel.add(displayHolder);
other.add(buttons);
JPanel forAdd = new JPanel(); // add the other buttons
forAdd.add(add);
other.add(forAdd);

//Add the panels
getContentPane().add(centerPanel, "Center");
getContentPane().add(other, "South");
this.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
setVisible(true);
}
private void makeTheDataItems ()
{
  Product p1 = new CDTitle("Classical Favorites", 1, 34, 13.96, "E1");
  Product p2 = new CDTitle("80’s Rock Hits", 2, 18, 15.86, "E1");
  Product p3 = new CDTitle("Mary J. Blige Greatist Hits", 3, 7, 19.96, "MA");
  Product p4 = new CDTitle("2Pac Greatist Hit", 4, 2, 24.86, "XL");

  supplies[0] = p1;
  supplies[1] = p2;
  supplies[2] = p3;
  supplies[3] = p4;
}
//Utility method for creating buttons
private JButton makeButton(String label)
{
JButton button = new JButton(label);
button.setActionCommand(label);
button.addActionListener(this);
return button;
}
private void addItem()
{
System.out.println("eeeeeeeeee");
panel = new JPanel();
JPanel add = new JPanel();
add.setLayout(new GridLayout(2, 1));
add.setLayout(new GridLayout(4, 4));
JButton addIt = makeButton("Add Item");
JLabel itemName = new JLabel("Name       :");

//JLabel itemNumber = new JLabel("Number       :");
JLabel rating = new JLabel("Rating       :");
JLabel quantity = new JLabel("Quantity	      :");
JLabel price = new JLabel("Price	   :");
add.add(itemName); add.add(itemNameField);

//add.add(itemNumber); add.add(itemNumberField);
add.add(rating); add.add(ratingField);
add.add(quantity); add.add(quantityField);
add.add(price); add.add(priceField);
panel.add(add);
JPanel forAddIt = new JPanel();
forAddIt.add(addIt);
panel.add(forAddIt);
displayHolder.remove(display);
displayHolder.add(panel);
//display = panel;
this.setVisible(true);
}

public static void main( String args[])
{
Inventory5 object = new Inventory5(); // main method
} // end main method
public void actionPerformed(ActionEvent event)
{
String command = event.getActionCommand(); // retrieves the command
//compare strings using the .equals method
if(command.equals("First"))
{
displayFirst();
}
else if(command.equals("Next"))
{
displayNext();
}
else if(command.equals("Previous"))
{
displayPrevious();
}
else if(command.equals("Last"))
{
displayLast();
}
else if(command.equals("Exit"))
{
this.dispose();
System.exit(0);
}
else if(command.equals("Add"))
{
addItem();
}
else if(command.equals("Add Item"))
{
addItemToArray();
}

}
private void addItemToArray()
{
Product p = new CDTitle(itemNameField.getText(), supplies.length -2, Long.parseLong(quantityField.getText()),
Double.parseDouble(priceField.getText()), ratingField.getText());

//Extend size of array by one first
Product[] ps = new Product[supplies.length + 1];
for(int i = 0; i < ps.length-1; i++)
{
ps[i] = supplies[i];
}
ps[supplies.length] = p;
supplies = ps;
displayHolder.remove(panel);
displayHolder.add(display);
displayLast();
this.setVisible(false);
this.setVisible(true);
}
//Utility method

private void displayItemAt(int index)
{
CDTitle product = (CDTitle)supplies[index];
itemName.setText("Item Name: "+ product.getItemName());
itemNumber.setText("Item Number: "+ product.getItemNumber());
rating.setText("Rating: "+ product.getRating());
quantity.setText("Quantity In Stock: "+ product.getStockQuantity());
price.setText("Item Price  "+ product.getItemPrice());
totalValue.setText("Total: " + product.calculateInventoryValue());
fee.setText("Fee :"+product.calculateRestockFee());
this.setVisible(true);
}
public void displayFirst()
{
displayItemAt(0);
currentIndex = 0;
}
public void displayNext()
{
if(currentIndex == supplies.length-1)
{
displayFirst();
currentIndex = 0;
}
else {
displayItemAt(currentIndex + 1);
currentIndex++;
}
}
public void displayPrevious()
{
if(currentIndex == 0)
{
displayLast();
currentIndex = supplies.length-1;
}
else {
displayItemAt(currentIndex - 1);
currentIndex--;
}
}
public void displayLast()
{
displayItemAt(supplies.length-1);
currentIndex = supplies.length-1;
}
}//end class Inventory5

You will not get a good guidance in this way. You have pasted in whole of your code, nobody is having time to read up 263 lines of code.
we can guide you, but we can't write code for you, or review your code.

So always follow these steps:
1. Point out your specific problem.
2. Describe your problem in as clear words as possible.
3. paste in code that is concerned to your problem (don't dump all of your code, do that only if asked for).

**sumittyagi** · May 17 '07, 06:58 AM

You will not get a good guidance in this way. You have pasted in whole of your code, nobody is having time to read up 263 lines of code.
we can guide you, but we can't write code for you, or review your code.

So always follow these steps:
1. Point out your specific problem.
2. Describe your problem in as clear words as possible.
3. paste in code that is concerned to your problem (don't dump all of your code, do that only if asked for).

How do I?....

How do I?....

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