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Java Java Objects (Retired) Delivering the MVP Defaulting Parameters

Why am i getting a message that i didnt uncomment , if i did!

i seem to have done everything right. even my bluejay is printing out to its terminal evrything correctly, what could be my error?

Example.java
public class Example {

  public static void main(String[] args) {
    ShoppingCart cart = new ShoppingCart();
    Product pez = new Product("Cherry PEZ refill (12 pieces)");
    cart.addItem(pez, 5);
    /* Since a quantity of 1 is such a common argument when adding a product to the cart,
     * your fellow developers have asked you to make the following code work, as well as keeping
     * the ability to add a product and a quantity.
     */
    Product dispenser = new Product("Yoda PEZ dispenser");
    /* Uncomment the line following this comment,
       after adding a new method using method signatures,
       to solve their request in ShoppingCart.java
    */
     cart.addItem(dispenser);
  }

}
ShoppingCart.java
public class ShoppingCart {

  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. Please imagine
       lots and lots of code here. Don't repeat it. 
    */
  }
     public void addItem(Product item)
  {
      int quantity =1;
      System.out.printf("adding %d of %S to the cart.%n", quantity, item.getName()); 

   }

}
Product.java
public class Product {
  /* Other code omitted for clarity, but you could imagine
     it would store price, options like size and color
  */
  private String mName;

  public Product(String name) {
      mName = name;
  }

  public String getName() {
      return mName;
  }
}

1 Answer

Rob Bridges
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.a{fill-rule:evenodd;}techdegree seal-36
Rob Bridges
Full Stack JavaScript Techdegree Graduate 35,459 Points

Hey Chaya,

The grader isn't very good at notifying you when the issue is detected, but the problem is that you're repeating yourself when you create the new method, there's a much simpler way to do it, which is what the challenge is looking for.

public class ShoppingCart {

  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. Please imagine
       lots and lots of code here. Don't repeat it. 
    */
  }
     public void addItem(Product item)
  {
      addItem(item, 1);

   }

}

This way, we're using the same method that we've already entered, but just making the program already assume that an input of one is chosen in the event that no argument is passed in for quantity.

Thanks, hope this helps.

Thanx!