I have Parsed some JSON data and its working fine as long as I store it in String variables.
My problem is that I need the ID in an int varibable and not in String. i have tried to make a cast int id = (int) jsonObj.get("");
But it gives an error message that I cannot convert an object to an int. So I tried to convert by using:
String id = (String) jsonObj.get("id"); int value = Integer.parseInt(id);
But also that is not working. What is wrong. How is JSON working with int? My strings are working just fine its only when I try to make them as an int I get problems.
Here is my code :
public void parseJsonData() throws ParseException { JSONParser parser = new JSONParser(); Object obj = parser.parse(jsonData); JSONObject topObject = (JSONObject) obj; JSONObject locationList = (JSONObject) topObject.get("LocationList"); JSONArray array = (JSONArray) locationList.get("StopLocation"); Iterator<JSONObject> iterator = array.iterator(); while (iterator.hasNext()) { JSONObject jsonObj = (JSONObject) iterator.next(); String name =(String) jsonObj.get("name"); String id = (String) jsonObj.get("id"); Planner.getPlanner().setLocationName(name); Planner.getPlanner().setArrayID(id); } }
JSON NumbersNumbers in JSON must be an integer or a floating point.
parse() JSON parsing is the process of converting a JSON object in text format to a Javascript object that can be used inside a program. In Javascript, the standard way to do this is by using the method JSON. parse() , as the Javascript standard specifies.
JSON only allows key names to be strings. Those strings can consist of numerical values.
JSON (JavaScript Object Notation) is a straightforward data exchange format to interchange the server's data, and it is a better alternative for XML. This is because JSON is a lightweight and structured language.
You may use parseInt
:
int id = Integer.parseInt(jsonObj.get("id"));
or better and more directly the getInt method :
int id = jsonObj.getInt("id");
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