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Java Java Objects Delivering the MVP Applying a Discount Code

fahad Ansar
fahad Ansar
1,364 Points

CAnt find the answer to this

Have tried many different things but can't get away from bummer

Order.java
public class Order {
  private String itemName;
  private int priceInCents;
  private String discountCode;



  public Order(String itemName, int priceInCents) {
    this.itemName = itemName;
    this.priceInCents = priceInCents;
  }

  private String normalizeDiscountCode(String discountCode){
    if(!(Character.isLetter(discountCode)){
     throw new IllegalArgumentException("Invalid discount code");
    }
     return discountCode.toUpperCase();  
  }

  public String getItemName() {
    return itemName;
  }

  public int getPriceInCents() {
    return priceInCents;
  }

  public String getDiscountCode() {
    return discountCode;
  }

  public void applyDiscountCode(String discountCode) {
     this.discountCode = normalizeDiscountCode(discountCode);

   }
}
Example.java
public class Example {

  public static void main(String[] args) {
    // This is here just for example use cases.

    Order order = new Order(
            "Yoda PEZ Dispenser",
            600);

    // These are valid.  They are letters and the $ character only
    order.applyDiscountCode("abc");
    order.getDiscountCode(); // ABC

    order.applyDiscountCode("$ale");
    order.getDiscountCode(); // $ALE


    try {
      // This will throw an exception because it contains numbers
      order.applyDiscountCode("ABC123");
    } catch (IllegalArgumentException iae) {
      System.out.println(iae.getMessage());  // Prints "Invalid discount code"
    }
    try {
      // This will throw as well, because it contains a symbol.
      order.applyDiscountCode("w@w");
    }catch (IllegalArgumentException iae) {
      System.out.println(iae.getMessage());  // Prints "Invalid discount code"
    }

  }
}

2 Answers

Kevin Verbeek
Kevin Verbeek
5,499 Points

whats the error you keep getting?

Seth Kroger
Seth Kroger
56,413 Points

You're on the right track checking if a character is a letter, but you need to run though all the characters in the code to check. You should also be checking if the character is a dollar sign, '$', as well.