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Java

Posted by melissakeith
melissakeith
3,766 Points

Need help with code for Java refactoring challenge

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. 
    */
    addItem(Item,1);
  }
}

Example.java

 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);

I've tried a few other ways from examples I found in the forum but none of them work even though they seem to have for other people, so what gives?

1 Answer

jcorum
jcorum
71,830 Points
jcorum
jcorum
71,830 Points

You didn't give a link to the challenge so I can't see what they want exactly, but if it is a 2nd constructor you have to do it this way:

public class ShoppingCart {

 public void addItem(Product item, int quantity) {
    System.out.printf("Adding %d of %s to the cart.%n", quantity, item.getName());
  }

  // new method with different signature
  public void addItem(Product item) {
    addItem(item, 1);
  }
}

This second constructor takes one parameter, item, and calls the first constructor with item and a hard-coded value of 1.

Hope this helps!