Subscribe through RSS ,
Microsoft Office Professional Plus
Purchase Laptop | Notebook | Netbook
Buy Laptop computer | Notebook | Netbook from Best Brand names : Acer, Sony,
Microsoft Office Enterprise 2007, Toshiba, Apple Macbook, Dell, Lenovo, Hewlet Packard,
microsoft Office 2010 keygen, Fujitsu
Question by Jaix: Write a method in Java for a product sales report method that computes and prints the discount for any item?
I’m new to java but i’m sorta stuck! The method should choose from four items. Based on the quantity ordered, if the quantity is 20 )
discount = 15 / 100 * itemPrice;
else if( order = 11 )
discount = 10 / 100 * itemPrice;
else if( order = 6 )
discount = 5 / 10 * itemPrice;
else
discount = 0;
return discount;
}
public double calculateAmount()
double amount;
amount = itemPrice – discount;
return amount;
}
The main method code:
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package salesrecord;
import java.util.Scanner;
/**
*
* @author Jikes
*/
public class SalesRecordTest {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
int itemNumber = 0;
int quantity;
String itemName = “”;
double price = 0;
Scanner input = new Scanner( System.in );
System.out.println( “CURRENT ITEMS IN STOCK ARE LISTED BELOW:\n” );
System.out.println( “Item Number\t Item Name” );
System.out.println( “1)\t\t Dell 15\” Laptop\n2)\t\t HP Mini NoteBook\n3)\t\t Sony VIAO 12\” Tablet\n4)\t\t Apple MacBook Air” );
System.out.print( “\nEnter Desired Item Number: ” );
itemNumber = input.nextInt();
if( itemNumber == 1 )
price = 500;
itemName = “Dell Laptop”;
System.out.println( “You selected Dell 15\” Laptop\n” );
else if( itemNumber == 2 )
price = 400;
itemName = “HP NoteBook”;
System.out.println( “You selected HP Mini NoteBook\n” );
else if( itemNumber == 3 )
price = 800;
itemName = “Sony Tablet”;
System.out.println( “You selected Sony VIAO 12\” Tablet\n” );
else if( itemNumber == 4 )
price = 1300;
itemName = “MacBook Air”;
System.out.println( “You selected Apple MacBook Air\n” );
else
System.out.println( “Invalid Item Number Entered,
Windows 7 32 Bit!” );
Technique.out.print( “Enter Desired Quantity: ” );
quantity = input.nextInt();
SalesRecord mySalesRecord = new SalesRecord( price );
Program.out.println();
Technique.out.println( “ITEM NUMBER\tITEM NAME\tQUANTITY\tPRICE ($ )\tDISCOUNT ($ )\tAMOUNT ($ )\n” );
Method.out.printf( “%d\t\t%s\t%d\t\t%.2f\t%.2f\t\t%.2f\n\n”, itemNumber, itemName, quantity, mySalesRecord.getItemPrice(),
mySalesRecord.calculateDiscount( quantity ), mySalesRecord.calculateAmount() );
Method.out.println( “Thank you for Shopping with us!” );
}
}
Best answer:
Answer by Sayee
First, Thanks for the question! It took about 10 min before I spotted the mistake!
when using double
don’t do discount = 5 / 10 * itemPrice;
USE discount = 5.0 / 10.0 * itemPrice;
change all numbers with an extra .0 in all the calculation lines similar to above and it should work fine!
Hope it helps.
What do you think? Answer below,
Office 2007 Standard!