Rodsit

Having problems retrieving your data using java libraries JSONObject?
I am not surprised because its not so easy. This example will help you:

/* – here is an example JSON object from a URL (guardian API)
{
“response”:{
“status”:”ok”,
“userTier”:”free”,
“total”:1361206,
“startIndex”:1,
“pageSize”:10,
“currentPage”:1,
“pages”:136121,
“orderBy”:”newest”,
“results”:[{
“id”:”world/2011/aug/03/hosni-mubarak-way-trial”,
“sectionId”:”world”,
“sectionName”:”World news”,
“webPublicationDate”:”2011-08-03T07:11:00+01:00″,
“webTitle”:”Hosni Mubarak on way to face trial, says Egyptian official”,
“webUrl”:”http://www.guardian.co.uk/world/2011/aug/03/hosni-mubarak-way-trial”,
“apiUrl”:”http://content.guardianapis.com/world/2011/aug/03/hosni-mubarak-way-trial”
},{
“id”:”public-leaders-network/2011/aug/03/pfi-promises-rhetoric-reality”,
“sectionId”:”public-leaders-network”,
“sectionName”:”Public Leaders Network”,
“webPublicationDate”:”2011-08-03T07:00:04+01:00″,
“webTitle”:”PFI promises are more rhetoric than reality”,
“webUrl”:”http://www.guardian.co.uk/public-leaders-network/2011/aug/03/pfi-promises-rhetoric-reality”,
“apiUrl”:”http://content.guardianapis.com/public-leaders-network/2011/aug/03/pfi-promises-rhetoric-reality”
},{
“id”:”money/2011/aug/03/home-rental-costs-hit-record-highs”,
“sectionId”:”money”,
“sectionName”:”Money”,
“webPublicationDate”:”2011-08-03T07:00:03+01:00″,
“webTitle”:”Rents soar to record levels”,
“webUrl”:”http://www.guardian.co.uk/money/2011/aug/03/home-rental-costs-hit-record-highs”,
“apiUrl”:”http://content.guardianapis.com/money/2011/aug/03/home-rental-costs-hit-record-highs”
},{
“id”:”global-development/poverty-matters/2011/aug/03/africa-drought-uganda-no-somalia”,
“sectionId”:”global-development”,
“sectionName”:”Global development”,
“webPublicationDate”:”2011-08-03T07:00:02+01:00″,
“webTitle”:”East Africa drought: Uganda has problems, but it is no Somalia | Ben Jones”,
“webUrl”:”http://www.guardian.co.uk/global-development/poverty-matters/2011/aug/03/africa-drought-uganda-no-somalia”,
“apiUrl”:”http://content.guardianapis.com/global-development/poverty-matters/2011/aug/03/africa-drought-uganda-no-somalia”
},{
“id”:”money/2011/aug/03/virginia-wallis-redemption-charges”,
“sectionId”:”money”,
“sectionName”:”Money”,
“webPublicationDate”:”2011-08-03T07:00:01+01:00″,
“webTitle”:”Angry and confused over change in mortgage redemption charges”,
“webUrl”:”http://www.guardian.co.uk/money/2011/aug/03/virginia-wallis-redemption-charges”,
“apiUrl”:”http://content.guardianapis.com/money/2011/aug/03/virginia-wallis-redemption-charges”
},{
“id”:”money/2011/aug/03/virginia-wallis-house-flats-mortgage”,
“sectionId”:”money”,
“sectionName”:”Money”,
“webPublicationDate”:”2011-08-03T07:00:00+01:00″,
“webTitle”:”I want to convert flats back into a single house \u2013 what mortgage should I go for?”,
“webUrl”:”http://www.guardian.co.uk/money/2011/aug/03/virginia-wallis-house-flats-mortgage”,
“apiUrl”:”http://content.guardianapis.com/money/2011/aug/03/virginia-wallis-house-flats-mortgage”
},{
“id”:”world/2011/aug/03/china-calls-us-debt-manage”,
“sectionId”:”world”,
“sectionName”:”World news”,
“webPublicationDate”:”2011-08-03T06:45:36+01:00″,
“webTitle”:”China calls on US to manage its debt ‘responsibly’ from now on”,
“webUrl”:”http://www.guardian.co.uk/world/2011/aug/03/china-calls-us-debt-manage”,
“apiUrl”:”http://content.guardianapis.com/world/2011/aug/03/china-calls-us-debt-manage”
},{
“id”:”technology/blog/2011/aug/03/google-sergey-brin-2000-tv-show”,
“sectionId”:”technology”,
“sectionName”:”Technology”,
“webPublicationDate”:”2011-08-03T06:40:00+01:00″,
“webTitle”:”It’s 2000: can you spot the real Sergey Brin on the quizshow?”,
“webUrl”:”http://www.guardian.co.uk/technology/blog/2011/aug/03/google-sergey-brin-2000-tv-show”,
“apiUrl”:”http://content.guardianapis.com/technology/blog/2011/aug/03/google-sergey-brin-2000-tv-show”
},{
“id”:”environment/2011/aug/03/garden-birds-avian-pox-virus”,
“sectionId”:”environment”,
“sectionName”:”Environment”,
“webPublicationDate”:”2011-08-03T06:00:02+01:00″,
“webTitle”:”UK garden birds hit by avian pox virus”,
“webUrl”:”http://www.guardian.co.uk/environment/2011/aug/03/garden-birds-avian-pox-virus”,
“apiUrl”:”http://content.guardianapis.com/environment/2011/aug/03/garden-birds-avian-pox-virus”
},{
“id”:”voluntary-sector-network/2011/aug/03/charity-sector-management-recruitments”,
“sectionId”:”voluntary-sector-network”,
“sectionName”:”Voluntary Sector Network”,
“webPublicationDate”:”2011-08-03T06:00:02+01:00″,
“webTitle”:”Demand for interim managers in charity sector remains high, says recruitment specialist”,
“webUrl”:”http://www.guardian.co.uk/voluntary-sector-network/2011/aug/03/charity-sector-management-recruitments”,
“apiUrl”:”http://content.guardianapis.com/voluntary-sector-network/2011/aug/03/charity-sector-management-recruitments”
}] }}
*/

// retrieve your JSON somehow, I am using URLConnection. If you want the whole code email me.
URL twitter = new URL(“http://content.guardianapis.com/search?format=json”);
URLConnection tc = twitter.openConnection();
BufferedReader in = new BufferedReader(new InputStreamReader(
tc.getInputStream()));

//. put your JSON into a string:
StringBuilder sb = new StringBuilder();
String line;
while ((line = in.readLine()) != null) {
sb.append(line + “\n”);
}
// here is what you probably want most – its not so damn obvious. I got there by ‘trial and error’ 🙂
JSONObject jObject2 = new JSONObject(sb.toString());
JSONObject menuObject2 = jObject2.getJSONObject(“response”);
String attributeId12 = menuObject2.getString(“status”);
System.out.println(“value == ” +attributeId12);
String attributeId22 = menuObject2.getString(“userTier”);
System.out.println(“value == ” +attributeId22);
String attribute3 = menuObject2.getString(“results”);
System.out.println(“value == ” +attribute3);
JSONArray ja4 = jObject2.getJSONObject(“response”).getJSONArray(“results”);
System.out.println(“sub1_att = ” + ja4.getJSONObject(0).getString(“sectionId”).toString()+”\n\n”);
System.out.println(“sub1_att = ” + ja4.getJSONObject(0).getString(“sectionName”).toString()+”\n\n”);
for (int i=0;i<ja4.length();i++){
System.out.println("length = " + ja4.getJSONObject(i).getString("sectionName").toString()+"\n\n");
}

All the best with this JSONObject library. It does work but needs careful coding.
‘Like me’ if you appreciated this pls.