Change the program to work of multiples of dozens of apples.
For 12 apples it should return: You have bought 1 dozen of apples for a total cost of 54.0.
This should work for any multiple of 12.
For 36 apples it should return: You have bought 3 dozens of apples for a total cost of 138.0.
Extra challenge:
| public class AppleStockCount { | |
| public static void main(String[] args) { | |
| if (args.length == 0) { | |
| System.out.println("Please give me a qty!"); | |
| return; | |
| } | |
| int qty = Integer.parseInt(args[0]); | |
| double cost = 4.50; | |
| double total; | |
| if (qty < 1) { | |
| System.out.println("Out of stock."); | |
| } | |
| else { | |
| total = qty * cost; | |
| StringBuilder message = new StringBuilder(); | |
| message.append("You have bought "); | |
| message.append(qty); | |
| message.append(" apple"); | |
| if (qty > 1) { | |
| message.append("s"); | |
| } | |
| message.append(" for a total cost of "); | |
| message.append(total); | |
| message.append("."); | |
| System.out.println(message.toString()); | |
| } | |
| } | |
| } |
