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Android Build a Blog Reader Android App Getting Data from the Web Getting JSON Data from an HTTP Request

adnanalvee2
adnanalvee2
6,862 Points
Posted by adnanalvee2
adnanalvee2
6,862 Points

Stuck on Code Challenge! Stage 3: Getting Data from the Web

Code Challenge: Let's work inside the 'doInBackground()' method in the 'if' condition that checks for a successful HTTP response (see comment). Declare an InputStream variable and initialize it using the 'getInputStream()' method of the 'connection' variable.

I did the String responseData = new String(charArray) according to instructions but still I'm getting error. 

String responseData = "";

try {
    URL treehouseUrl = new URL("http://blog.teamtreehouse.com/api/get_recent_summary/?count=20");
    HttpURLConnection connection = (HttpURLConnection) treehouseUrl.openConnection();
    connection.connect();
    int responseCode = connection.getResponseCode();

    if (responseCode == HttpURLConnection.HTTP_OK) {
        InputStream inputStream = connection.getInputStream();
      Reader reader = new InputStreamReader(inputStream);
      char[] charArray = new char[connection.getContentLength()];
      reader.read(charArray);

      String responseData = new String(charArray);

        // Code to read InputStream goes here!

    }
}
catch (MalformedURLException e) {
    Log.e(TAG, "MalformedURLException caught!", e);
}
catch (IOException e) {
    Log.e(TAG, "IOException caught!", e);
}

1 Answer

Nick Edwards
PLUS
Nick Edwards
Courses Plus Student 15,766 Points
Nick Edwards
Nick Edwards
Courses Plus Student 15,766 Points

The problem is that the object type for responseData has already been declared (as a String) in the first line. So you need to change the last responseData line to:

responseData = new String(charArray);

Don't forget that clicking on preview when you get an error can provide some valuable insight as to what might be wrong; using your code produced the following:

JavaTester.java:75: responseData is already defined in run()
            String responseData = new String(charArray);
                   ^
1 error