Java code invoice and test invoice

Question

import java.util.Scanner;

public class Invoice
{
private String partNumber;
private String partDescription;
private int quantity;
private double pricePerItem;

// four-argument constructor
public Invoice( String part, String description, int count,
double price )
{
partNumber = part;
partDescription = description;
setQuantity( count ); // validate and store quantity
setPricePerItem( price ); // validate and store price per item
} // end four-argument Invoice constructor

// set part number
public void setPartNumber( String part )
{
partNumber = part;
} // end method setPartNumber

// get part number
public String getPartNumber()
{
return partNumber;
} // end method getPartNumber

// set description
public void setPartDescription( String description )
{
partDescription = description;
} // end method setPartDescription

// get description
public String getPartDescription()
{
return partDescription;
} // end method getPartDescription

// set quantity
public void setQuantity( int count )
{
quantity = ( count < 0 ) ? 0 : count; // quantity cannot be negative
} // end method setQuantity

// get quantity
public int getQuantity()
{
return quantity;
} // end method getQuantity

// set price per item
public void setPricePerItem( double price )
{
pricePerItem = ( price < 0.0 ) ? 0.0 : price; // validate price
} // end method setPricePerItem

// get price per item
public double getPricePerItem()
{
return pricePerItem;
} // end method getPricePerItem

// return String representation of Invoice object
public String toString()
{
return String.format( "%s: \n%s: %s (%s) \n%s: %d \n%s: $%,.2f",
"invoice", "part number", getPartNumber(), getPartDescription(),
"quantity", getQuantity(), "price per item", getPricePerItem() );
} // end method toString

// method required to carry out contract with interface Payable
public double getPaymentAmount()
{
return getQuantity() * getPricePerItem(); // calculate total cost
} // end method

 

 

 

import java.util.Scanner;

public class InvoiceTest
{
public static void main(String[]args)
{
Invoice purchase = new Invoice(" ", " ",0,0.00);
Scanner input = new Scanner(System.in);

String item;
String description;
int quantity;
double price;

System.out.print("Enter Number:");
item = input.nextLine();
Invoice.setPartNumber(item);


System.out.print ("Enter Description of Item:");
description = input.nextLine();
Invoice.setPartDescription(description);

System.out.print("Enter the Qauntity of Item:");
quantity = input.nextInt();
if (quantity > 0)
Invoice.setQauntityofItemPurchased(qauntity);

System.out.print("Enter the Price Per Item:");
price = input.nextDouble();
if (price > 0)
Invoice.setPricePerItem (price);

System.out.printf("The Total Amount for all items purchased = $%.2f\n",
Invoice.getInvoiceAmount());

}
}

Answer 1

And what exactly is your question? Have you tried compiling and/or testing and if so, what were the results?