How can i sort my JSON object based on Key?

Question

I am creating a JSON object in which i am adding a key and a value which is an array. The value for both key and value comes from a TreeSet which has data in sorted form. Ho

Answer 1

Even if this post is quite old, I thought it is worth posting an alternative without GSON:

First store your keys in an ArrayList, then sort it and loop through the ArrayList of keys:

Iterator it= MyTreeSet.iterator();
ArrayListkeys = new ArrayList();

while (it.hasNext()) {
    keys.add(it.next());
}
Collections.sort(keys);
for (int i = 0; i < keys.size(); i++) {
    String country = keys.get(i);
    System.out.println("----country"+country);
    JSONArray jsonArray = new JSONArray();
    jsonArray.put(country);
    jsonArray.put("this");

    jsonObj.put(country, jsonArray);
}