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Android Development Techdegree Student 358 Pointshi guys can someone post his answer for this challenge
please if someone do it try to post it
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);
}
}
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 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;
}
}
2 Answers
Alexander Nikiforov
Java Web Development Techdegree Graduate 22,175 PointsMake sure you check all Community answers before, there a ton of answers there, waiting for you to understand how to solve the challenge:
In order to see them click on "Defaulting Parameters" right above your question title in line of
Java -> Java -> Objects -> Delivering the MVP -> Defaulting Parameters
Here is direct link just in case
https://teamtreehouse.com/community/code-challenge:6032
Here are the nice answers from there
https://teamtreehouse.com/community/i-dont-get-what-i-am-supposed-to-do-here
Chris Jones
Java Web Development Techdegree Graduate 23,933 PointsI feel like I cheated, but I overloaded the addItem method by adding the method below to ShoppingCart.java.
public void addItem(Product item) {
System.out.printf("Adding %d of %s to the cart.%n", 1, item.getName());
/* Other code omitted for clarity. Please imagine
lots and lots of code here. Don't repeat it.
*/
}
You can read about overloading methods here.
Alexander Nikiforov
Java Web Development Techdegree Graduate 22,175 PointsThe point of this challenge was to re-use
addItem
method
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.
*/
}
Do you see that " Other code omitted for clarity." You cannot just copy paste comment, you have to actually re-use method:
public void addItem(Product item) {
// this way no matter how many lines of code were inside "addItem"
// for any quantity, we re-used them
addItem(item, 1);
}
Do you see the difference ?