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Java Java Objects (Retired) Delivering the MVP Defaulting Parameters

Rodrigo Ayon Millan
Rodrigo Ayon Millan
2,172 Points

Why is this not working?

I get this error. Bummer! Did you uncomment the line in Example.java? The output from System.out does not show the 1 Yoda PEZ dispenser.

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 this line after 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 */
  }
  public void addItem(Product item){
    System.out.printf("1 %s.", 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
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Rob Bridges
Full Stack JavaScript Techdegree Graduate 35,467 Points

Hey Rodrigo,

When defining your second method, what the task is wanting you to do is use the predefined method that took an int as a quanity, they just want to pass it one by default, I did the same thing when first trying this.

Try this

public void addItem(Product item){
    addItem(item, 1);
  }

Thanks give me a shout if this doesn't help.