java objects pliz am stuck

Question

So at your new Java job, you've written a brand new Shopping Cart system for the website. After some developers have used the objects you created for a while, they ask you to make it easier to add things to the cart.
Check out more instructions in Example.java. Once you implement their request, check your work, and you will pass the challenge.
```Example.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 */
  }
}
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;
  }
}
```
```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 */
  }
}
```
```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;
  }
}
```

Jess Sanders · Answer

I suggest that you start the Challenge over.
Example.java has a line of code that is commented out
java
    cart.addItem(dispenser);

If all you do is uncomment this line and check your work, you get a compiler error.  We need to write a second addItem method that only takes one argument, rather than two.
So, in ShoppingCart.java, we can copy and paste the existing addItem method, but remove the second argument.  We also need to change what is printed, because we know that we are Adding 1 of the item to the cart.

MUZ140584 Heredity Mbundire · Answer

public class Example {
 public class ShoppingCart {
  public void addItem(Product item, int quantity) {
    quantity = 1;
    System.out.printf("Adding %d of %s to the cart.%n", quantity, item.getName());
    /* Other code omitted for clarity /
  }
    / 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.
     /
   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;
  }
}
    // Uncomment this line after using method signatures to solve their request in ShoppingCart.java
    // cart.addItem(dispenser);
  }
}

Steve Hunter · Answer

I've sent you an answer to this in the other thread. 
Steve.

Welcome to the Treehouse Community

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MUZ140584 Heredity Mbundire

MUZ140584 Heredity Mbundire

java objects pliz am stuck

3 Answers

Steve Hunter

Steve Hunter

MUZ140584 Heredity Mbundire

MUZ140584 Heredity Mbundire

Jess Sanders

Jess Sanders