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Android

Posted by Juan Gallardo
Juan Gallardo
1,568 Points

Challenge Task 1 of 3 : The data in the file 'data.json' has been loaded into a JSONObject named 'jsonData'

Not sure what I am doing wrong. I recall this format from my notes. <hr>

Question

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.

data.json

{
    "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
        }
    ]
}

<hr>

My Code

JSONObject jsonResponse = new JSONObject(responseData);
    for (int i = 0; i < jsonPosts.length(); i++) {
        JSONObject jsonPost = jsonPosts.getJSONObject(i);
        String name = jsonPost.getString("name");
        String publisher = jsonPost.getString("publisher");
        String language = jsonPost.getString("language");
        Log.v(TAG, "Post" + i + ": " + title);
    }
}

3 Answers

Ben Wong
Ben Wong
19,426 Points
Ben Wong
Ben Wong
19,426 Points

String name = jsonData.getString("name"); String publisher = jsonData.getString("publisher"); String language = jsonData.getString("language");

try this.

william parrish
william parrish
13,774 Points
william parrish
william parrish
13,774 Points

This is the key line you need to pay attention to:

The data in the file 'data.json' has been loaded into a JSONObject named 'jsonData'.

Your code follows the correct format, but you are using jsonPosts, when the data you are actually pulling from is in a variable named jsonData. Within the context of that coding exercise, jsonPosts doesnt exist.

cossy
cossy
17,748 Points
cossy
cossy
17,748 Points

// JSONObject 'jsonData' was loaded from data.json String name = jsonData.getString("name"); String publisher = jsonData.getString("publisher"); String language = jsonData.getString("language");