Method ReceiptBuilder

strings/ReceiptBuilder.java:11–16

()

  private Formatter f =
    new Formatter(new StringBuilder());
  public ReceiptBuilder() {
    f.format(
      "%-15s %5s %10s%n", "Item", "Qty", "Price");
    f.format(
      "%-15s %5s %10s%n", "----", "---", "-----");
  }
  public void add(String name, int qty, double price) {
    f.format("%-15.15s %5d %10.2f%n", name, qty, price);
    total += price * qty;