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Java Java Objects Delivering the MVP Applying a Discount Code

Enyang Mercy
PLUS
Enyang Mercy
Courses Plus Student 2,339 Points
Posted by Enyang Mercy
Enyang Mercy
Courses Plus Student 2,339 Points

STUCK!!!

Stuck here.

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;
  }
  private char normalizeDiscountCode() {
}

2 Answers

Steve Hunter
Steve Hunter
57,712 Points
Steve Hunter
Steve Hunter
57,712 Points

Hi there,

There was another thread on this same point that I added an answer to yesterday - let's start again here.

First, let's create the new method, normalizeDiscountCode. This is a private method that returns a String. It also accepts a String as a parameter. So, start with the keyword private, then put the return type, String. Next comes the method name which is followed by brackets. Inside the brackets declare a String and call it something sensible, like discountCode. Putting that together looks like:

private String normalizeDiscountCode(String discountCode){
  // do stuff in here
}

Inside the method, initially, we want to return the uppercase version of the code that was passed in. I did a Google for Java uppercase string which told me that the method required is called toUpperCase(). You use that with dot notation on the incoming string called discountCode and send it back to the caller using return.

private String normalizeDiscountCode(String discountCode){
  // do stuff in here
  return discountCode.toUpperCase();
}

Now, use that method in the existing applyDiscountCode method. In there, change this line:

this.discountCode = discountCode;

to use the normalize method on the discount code to the right of the equals. Send in discountCode into the method:

this.discountCode = normalizeDiscountCode(discountCode);

I hope that helps.

Steve.