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Java Java Objects Delivering the MVP Applying a Discount Code

For this first task, create a new private method named normalizeDiscountCode

i am stuck please help

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;
  }

  public String getItemName() {
    return itemName;
  }

  public int getPriceInCents() {
    return priceInCents;
  }

  public String getDiscountCode() {
    return discountCode;
  }

  public void applyDiscountCode(String discountCode) {
    this.discountCode = discountCode;
  }
   pprivate String normalizeDiscountCode(String discountCode) {
    return discountCode.toUpperCase();
  }
}
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"
    }

  }
}

3 Answers

David Dooley
David Dooley
3,028 Points

Try this

 public void applyDiscountCode(String discountCode) {
    //We need to call our normailizeDC method and pass in the discount code
    this.discountCode = normalizeDiscountCode(discountCode);
  }
    private String normalizeDiscountCode(String discountCode) ){
     /*we pass this instance of our discount code into A Character Method that already exist in java which 
    which takes out discount code and makes it uppercase and returns it back to this.method (normalizeDiscountCode)*/

    return discountCode.toUpperCase();
  }   
Thomas Nilsen
Thomas Nilsen
14,957 Points

you have written 'pprivate' instead of 'private'

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

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) { this.discountCode = normalizeDiscountCode(discountCode); } private String normalizeDiscountCode(String discountCode) { return discountCode.toUpperCase(); } }

// This is the answer