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Java Java Objects Delivering the MVP Applying a Discount Code

Posted by Nigel Jaure
Nigel Jaure
5,066 Points

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
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
Thomas Nilsen
Thomas Nilsen
14,957 Points

you have written 'pprivate' instead of 'private'

Peter Rydén
Peter Rydén
1,090 Points
Peter Rydén
Peter Rydén
1,090 Points

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