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Jacob Paivarinta
Courses Plus Student 610 PointsConfused and in Need of Help
public void addItem(Product item) {
System.out.printf("Adding 1 of %s to the cart.\n", item.getName());
}
This is the only code I've added. I don't understand what else it is that I need to do. I've watched the video three times, but I'm still not able to make the connection between it and the exercise. I also have been going through and building the Hangman Game in workspaces to use as notes, but I still haven't been able to figure this one out. //System.out.println(":("); And while giving the answer would be fast and simple, I also need more help with what Craig is actually doing here and how to apply it elsewhere.
3 Answers
Rob Bridges
Full Stack JavaScript Techdegree Graduate 35,467 PointsHey there Jacob, you did the same thing I did and many students do in this, you overloaded the method perfectly. However this challenge is expecting you to use the previous method inside your new overloaded method.
So try something like
public void addItem(Product item) {
addItem(item, 1);
}
Also, be sure to uncomment the code in example.java cart.addItem(dispenser);
Rogelio Valdez
6,244 PointsHi Jacob! You were getting the idea right but the best practice is what Rob Bridges just mentioned. Since he is not repeating himself (remember DRY principle?). However you could have also used this code where instead of putting the "1" Inside quotes you could have used it outside the quotes instead of "quantity" and this way the challenge will be completed. It would be better if the challenge didn't let you do this, but anyway I am mentioning this to help you understand a little bit more.
Remember this is not the best practice since you are repeating your code. This was mentioned by Craig somewhere in the first lessons where he mentioned this is a way of setting a default value to a method (method signatures).
//This is not the best practice since you are repeating code but it will work
public void addItem(Product item, int quantity) {
System.out.printf("Adding %d of %s to the cart.%n", quantity, item.getName());
/* Other code omitted for clarity */
}
public void addItem(Product item) {
System.out.printf("Adding %d of %s to the cart.%n", 1, item.getName());
}
Neelesh Tewani
1,239 Pointshi i am Neelesh i want to ask there is another way means without copying the code because craig said that" this is not the best practice"
Rob Bridges
Full Stack JavaScript Techdegree Graduate 35,467 PointsHi Neelash, you are right there is a better way to do it.
You can simply just create a new method signature and call the method like below.
public void addItem(Product item) {
addItem(item, 1);
}
This will automatically pass the value of the item and 1 into the method. Without repeating yourself.
Rogelio Valdez
6,244 PointsRogelio Valdez
6,244 PointsI forgot how to use method signatures. I only remembered that had to use one inside the other method and ended up the challenge repeating the code twice (I know it's not the best practice). Thank you for refreshing my memory.