How to create variables based on a json file ?

Good afternoon,

I was having a good progress in my learning about JSON, however i don't know what am i doing wrong in this exercise.

Challenge Task 1 of 1

The data in the file data.json has been loaded into a JSONObject named jsonData. Using data.json as your guide, create String variables named name, publisher, and language and set them to the appropriate values from data.json using the jsonData object.

What i'm doing in code is as follows:

JSONObject forecast = JSONObject(jsonData); String name = forecast.getString("Treehouse Book Series"); String publisher = forecast.getString("Wiley"); String language = forecast.getString("English");

Thanks so much for your remarks :)

// A JSONObject variable named 'jsonData'
// was loaded from the data.json file.

{
    "name":"Treehouse Book Series",
    "publisher":"Wiley",
    "language":"English",
    "books":[
        {
            "title":"HTML5 Foundations",
            "author":"Matt West",
            "pages":384
        },
        {
            "title":"CSS3 Foundations",
            "author":"Ian Lunn",
            "pages":352
        }
    ]
}