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Java Java Objects Delivering the MVP Applying a Discount Code

abdi farah
abdi farah
3,741 Points

I'm not sure what's wrong

The goal of the code was to check if in a string there was a character that wasn't a letter. After writing it, and getting rid of a couple of compile errors, the challenge would not accept. It said it ran the code using order.applyDiscountCode("h1");

so I copied the code and ran it locally, and it worked fine. I'm not sure what's wrong. I hope the code attaches...

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

  private String normalizeDiscountCode(String discountCode){

    boolean allLetters = true;
    char[] discountLetters = discountCode.toCharArray();

    for(int n = 0;n < discountCode.length(); n++)
      if (Character.isLetter(discountLetters[n]) == false)   
          allLetters = false;

    if(allLetters == false)
      throw new IllegalArgumentException("Invalid discount code");
      return discountCode.toUpperCase();

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

  public String getItemName() {
    return itemName;

  public int getPriceInCents() {
    return priceInCents;

  public String getDiscountCode() {
    return discountCode;

  public void applyDiscountCode(String discountCode) {

    String temp = "";

     temp = normalizeDiscountCode(discountCode);
    catch(IllegalArgumentException illex){
    this.discountCode = temp;
public class Example {

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

    Order order = new Order(
            "Yoda PEZ Dispenser",

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

    order.getDiscountCode(); // $ALE

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


1 Answer

abdi farah
abdi farah
3,741 Points

Found an answer from the community, by a previously asked question https://teamtreehouse.com/community/why-is-task-one-not-passing