ClassCastException: org.json.simple.JSONArray cannot be cast to org.json.simple.JSONObject

Question

I am trying to parse a son file, and I don\'t know what I\'m doing wrong (of course, I don\'t really know what I\'m doing right, either).

file.json

Answer 1

When the JSonParser parses the file, it's returning it as a JSONArray, to solve it try to use this:

    JSONObject obj = (JSONObject)obj;
    JSONObject elem = (JSONObject)obj.get("0");
    String unit = (String) elem.get("elemTwo");
    System.out.println(unit);

Answer 2

you are getting JSONArray not JsonObject

JSONParser parser = new JSONParser();
Object obj = parser.parse(new FileReader("/path/to/file.json"));
JSONArray json = (JSONArray) obj;

Than loop this and get jsonobject

Answer 3

You should cast your obj toJsonArrayinstead of JsonObject, because your json file has [] at the root.