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Android

Sara Nocentini
Sara Nocentini
1,157 Points
Posted by Sara Nocentini
Sara Nocentini
1,157 Points

Help on Challenge Getting JSON Data from an HTTP Request (Task 5)?

Everything is fine untill I get to the last task where I am supposed to, set the 'responseData' String variable with the data in 'charArray'. Convert it using the String constructor that takes a char array as its parameter.

I wrote the following code:

String responseData = new String(charArray);

but If I enter it tells me that

JavaTester.java:73: responseData is already defined in run( String responseData = new String(charArray);

Indeed it is defined in the line 1, but If I delete that line I got 2 errors:

JavaTester.java:134: cannot find symbol symbol : variable responseData location: class JavaTester if (responseData.equals("")) { ^ JavaTester.java:137: cannot find symbol symbol : variable responseData location: class JavaTester else if (!responseData.equals("STAGE3TEST")) { ^

I don't know how to solve it. Can anyone Help me?

3 Answers

Matt L
Matt L
Courses Plus Student 1,846 Points

Hey Sara,

I was also stuck on the same problem. As best as I can describe it, I believe that when you use "String" before the variable, you are declaring it as a new String. Since the variable "responseData" has already been declared as a String, doing it again results in the error. Try removing "String" from your code, and simply refer to "responseData" directly.

Hope this helped! Matt

Sara Nocentini
Sara Nocentini
1,157 Points
Sara Nocentini
Sara Nocentini
1,157 Points

Thanks, it workd! As you said I had to remove String from the code. Thank you so much, Sara

eric hughes
eric hughes
12,345 Points
eric hughes
eric hughes
12,345 Points

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);
    int contentLength = connection.getContentLength();
    char[] charArray = new char[contentLength];
    reader.read(charArray);
    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); }

Calvin Nix
Calvin Nix
43,828 Points
Calvin Nix
Calvin Nix
43,828 Points

Hey Sara,

Do you mind providing the full code you wrote?

Thanks, Calvin