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Start your free trialMehtab Kayani
3,179 PointsIm stuck and cannot figure out what Im missing.
Need some help.
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){
if(!discountCode.equalsIgnoreCase(discountCode) && !discountCode.equalsIgnoreCase("$")){
throw new IllegalArgumentException("Invalid discount code.");
}
return discountCode.toUpperCase();
}
}
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
Tyler B
5,787 PointsThis line:
!discountCode.equalsIgnoreCase(discountCode)
is confusing if discountCode = "A"
you're asking Opposite of (Does "A" equal "A" OR "a")
I believe what you wanted to do is leverage Character.isLetter()
to validate your value. Hope that helps!
Mehtab Kayani
3,179 PointsThank you!
Cole Baker
631 PointsCole Baker
631 PointsI'm stuck on the same problem. If Character.isLetter() is used, how would you implement it to compare it through the String discountCode?