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method call not responding correctly
Joined: Nov 20, 2005
Dec 11, 2005 10:47:00
I can't believe this isn't working!
I am building a GUI which includes the following code (I will just post the pertinent lines):
Invoice invoices = new Invoice();
finish = new
("Finish and Save");
public void actionPerformed(
int quantity = catalogItems.getSelectedIndices().length;
double price = 10.00;
JOptionPane.showMessageDialog(null, "quantity: " + catalogItems.getSelectedIndices().length);
JOptionPane.showMessageDialog(null, "Thank you for your order. Your total is " + invoices.getPayAmount(quantity, price));
class Invoice implements Payable
private int quantity;
private double pricePerItem;
public void setQuantity(int count)
quantity = (count < 0) ? 0: count;
public int getQuantity()
public void setPricePerItem(double price)
pricePerItem = (price < 0.0) ? 0.0: price;
public double getPricePerItem()
public double getPayAmount(int qty, double price)
return getQuantity() * getPricePerItem();
double getPayAmount(int qty, double price);
There are no compiling errors but the result of the getPayAmount() is always 0. I have tried passing (4, 10.00) - answer is still 0.
I need to be hit with a clue-by-four - what am I not seeing?
Joined: Mar 22, 2005
Dec 11, 2005 11:07:00
At least in the code you posted, you never set the quantity and pricePerItem fields of Invoice, so they keep their default values of zero.
Joined: Nov 20, 2005
Dec 11, 2005 11:15:00
Thanks, that was the ticket.
I agree. Here's the link:
subject: method call not responding correctly
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