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Start your free trialAngelos Kalandranis
661 PointsI keep getting a message that the string is not be normalized.
When calling the order.applyDiscountCode the discountCode has not been normalized. How do I use the normalizing method to correct this? Or is there something else wrong in my approach.?
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;
}
private String normalizeDiscountCode(String discountCode) {
this.discountCode= discountCode.toUpperCase();
return discountCode;
}
public void applyDiscountCode(String discountCode) {
this.discountCode = normalizeDiscountCode(discountCode);
}
}
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
Steve Hunter
57,712 PointsHi there,
For the first task, just return
the uppercase discountCode
from the method; no other actions are required. Take the passed-in string, and return the upper case version of it. You set this.discountCode
in the applyDiscountCode
method, not in normalizeDiscountCode
.
Steve.
calp
10,317 PointsYou're getting that message because you're not returning the parameter (the variable that is being passed into the method) in uppercase. I have written the correct code for you to look at,
private String normalizeDiscountCode(String discountCode) {
return discountCode.toUpperCase();
}