Backing up user data in Note to Self

So, with our new-found insight into exceptions, let's modify our Note to Self code and then we can be introduced to JSONObject and JSONException.

First, let's make some minor modifications to our Note class.

Add some more members that will act as the key in a key-value pair for each aspect of our Note class:

private static final String JSON_TITLE = "title";
private static final String JSON_DESCRIPTION = "description";
private static final String JSON_IDEA = "idea";
private static final String JSON_TODO = "todo";
private static final String JSON_IMPORTANT = "important";

Now, add a constructor and empty default constructor that receives a JSONObject and throws a JSONException. The body of the constructor initializes each of the members that define the properties of a single Note object by calling the getString or getBoolean method of the JSONObject, passing in the key as an argument. We also provide...