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michael lee
5,179 PointsWhat am I doing Wrong?
cannot understand what I am missing, please help I'm stuck in the first Challenge
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 normalizeDiscountCode(String discountCode){
this.discountCode = discountCode;
discountCode = discountCode.toUpperCase();
return discountCode;
}
public String getItemName() {
return itemName;
}
public int getPriceInCents() {
return priceInCents;
}
public String getDiscountCode() {
return discountCode;
}
public void applyDiscountCode(String discountCode) {
this.discountCode = discountCode;
discountCode = 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
<noob />
17,062 PointsHi, what exactly was the problem?, here is the working code for the first task:
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();
}
}
First u create the method that will a String and pass the discountCode as a parameter and inside the method u just return to upper case version of it. then u just need assign NormalizeDiscount code and the thing u want to normalize which is the discount code to the this.discountcode, doing this that way ensures that every discountCode we apply will be uppercased. hope this helps
<noob />
17,062 Pointsu put discount code in () because normalizeDiscoungCode takes a String which is the discount code an in order to apply a legitimate discount code u need to normalize the discount code first(normalize method takes the string and return a uppercase version of it)
Yusuf Mohamed
2,631 PointsThanks for the help. :)
Yusuf Mohamed
2,631 PointsYusuf Mohamed
2,631 PointsHey, I just got one question.
this.discountCode = normalizeDiscountCode(discountCode);Why do we put discountCode into the parentheses?