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Start your free trialSrinath V
1,624 PointsHaving trouble with the second task of this challenge.
I have completed task 1 with no problems, but when I write my code to pass task 2, I get a message that says "Task 1 no longer passing". I don't know what part of my code made it so that task 1 would no longer work, and I would appreciate any help.
Thanks, Srinath
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) {
try {
this.discountCode = normalizeDiscountCode(discountCode);
} catch (IllegalArgumentException iae) {
}
}
private String normalizeDiscountCode(String discountCode) {
for (char letter : discountCode.toCharArray()) {
if (Character.isLetter(letter) == false || discountCode.indexOf('$') == -1) {
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(); // $ALE
try {
// This will throw an exception because it contains numbers
order.applyDiscountCode("ABC123");
} catch (IllegalArgumentException iae) {
System.out.println(iae.getMessage()); // Prints "Invalid discount code"
}
try {
// This will throw as well, because it contains a symbol.
order.applyDiscountCode("w@w");
}catch (IllegalArgumentException iae) {
System.out.println(iae.getMessage()); // Prints "Invalid discount code"
}
}
}
1 Answer
Felix Sonnenholzer
14,654 PointsHi there,
in your case the discountCode
has to contain a '$'.
For each char you check if it is a letter, and if it's not you look at the whole string and check if it contains a '$'.
Since it Task 1 only a normal string is tested without a $ it will always throw an Exception.
BTW you don't have to check the whole string, but just the char you are at.
private String normalizeDiscountCode(String discountCode) {
for (char c : discountCode.toCharArray()) {
if ( !(Character.isLetter(c) || c == '$')) {
throw new IllegalArgumentException("Invalid discount code");
}
}
return discountCode.toUpperCase();
}
Just for explanation if
- c is a letter it returns
true
-> thanks to ! it will befalse
and won't throw an Exception - c is not a letter -> check if c is a $
-> check if c is a $
- c is a $ it returns
true
-> thanks to ! it will befalse
and won't throw an Exception - c is not $ it returns
false
-> thanks to ! it will betrue
and will throw an Exception
- c is a $ it returns
I hope I expressed it easy to understand.
Have fun