SWSales1

/* A software company sells a package that retails for $99. Quantity discounts are given according to the
 * the following table: 
 * Quantity         Discount
 *   10-19            20%    
 *   20-49            30%
 *   50-99            40%
 *   100 or more      50%
 * Write a program that asks the user to enter the number of packages purchased. The 
 * program should then display the amount of the discount (if any) and the total amount of the 
 * purchase after the discount. 
 */
 

import java.util.Scanner; 

public class SoftwareSales2 
{
	public static void main(String[] args) 
	{
		Scanner keyboard = new Scanner( System.in ); 
		
		int quantity;
		float price = 99;
		float orderAmount = 0;
		float discountAmount = 0;
		float totalAmount = 0; 
	   			
	   	//user's input
		System.out.println("Enter the quantity of packages: "); 
		quantity = keyboard.nextInt();
				
		if (quantity >= 0 && quantity <=9)
		{
			orderAmount = price * quantity;
			discountAmount = orderAmount * 0;
   			totalAmount = orderAmount - discountAmount;
			System.out.println("Your discount is 0%.");
		}
		
		if (quantity >= 10 && quantity <= 19)
	      {
			orderAmount = price * quantity;
			//discount = 20; 
			discountAmount = (float) (orderAmount * 0.20);
		    totalAmount = orderAmount - discountAmount;
	   		System.out.println("Your discount is 20%.");
	      }
	      
		else if (quantity >= 20 && quantity <= 49)
	      {
	    	orderAmount = price * quantity;
	    	//discount = 30;
	    	discountAmount = (float) (orderAmount * 0.30);
		    totalAmount = orderAmount - discountAmount;
	   		System.out.println("Your discount is 30%.");
	      }
	      
		else if (quantity >= 50 && quantity <= 99)
	      {
	     	orderAmount = price * quantity;
	     	//discount = 40;
	     	discountAmount = (float) (orderAmount * 0.40);
		    totalAmount = orderAmount - discountAmount;
	   		System.out.println("Your discount is 40%.");
	      }
	      
		else if (quantity >=100)
	      {
	     	orderAmount = price * quantity;
	     	//discount = 50;
	     	discountAmount = (float) (orderAmount * 0.50);
		    totalAmount = orderAmount - discountAmount;
	   		System.out.println("Your discount is 50%.");
	      } 
		
			//orderAmount = quantity * price;
			//discountAmount = orderAmount * discountAmount; 
			//totalAmount = orderAmount - discountAmount;
	
			System.out.println("The discount amount is: $" + discountAmount + " and " +
				"the total purchase amount after discount is: $" + totalAmount + "." +
				"\nThank you."); 
			
		System.exit(0);
	} 
}