There are currently no frequently asked questions associated with this exercise – that’s where you come in! You can contribute to this section by offering your own questions, answers, or clarifications on this exercise. Ask or answer a question by clicking reply () below.
If you’ve had an “aha” moment about the concepts, formatting, syntax, or anything else with this exercise, consider sharing those insights! Teaching others and answering their questions is one of the best ways to learn and stay sharp.
Join the Discussion. Help a fellow learner on their journey.
Ask or answer a question about this exercise by clicking reply () below!
You can also find further discussion and get answers to your questions over in Language Help.
Agree with a comment or answer? Like () to up-vote the contribution!
Why does the Array List initialization in the explanation:
ArrayList<String> shoppingCart = new ArrayList<shoppingCart>();
have a different format/template than the one we use in the program we have to modify:
ArrayList<String> sherlocksToDos = new ArrayList<String>();
On the right side of the assignment operator (the right side of the equals sign), inside the brackets we use <String> in our code. Why is the ArrayList object “shoppingCart” written inside of the brackets in the explanation code provided?
// Modify sherlocksToDos so that the value at "play violin" becomes "listen to Dr. Watson for amusement"
sherlocksToDos.set(1, "listen to Dr. Watson for amusement");
// Modify poirotsToDos so that the value at "trim mustache" becomes "listen to Captain Hastings for amusement".
poirotsToDos.set(3,"listen to Captain Hastings for amusement");
Too bad there doesn’t seem to be much proofreading on Codecademy…
it is far from the first time that I notice typos that actually affect the result of the code.
I think the .toString() method is called automatically when you try to add an object with a string (or even another object).
so Object1 + " and this string"
does the same thing as Object1.toString() + " and this string"