nickyrabit

//in my example im creating a json object from json array 
JSONObject object = jArr.getJSONObject(i);
//getting an JSONArray from JSONObject
JSONArray roleJSONArray = object.getJSONArray("roles");
                    
//This is where i check the null json object if "location" value comes null
//Step 1: check if its null using isNull
if(object.isNull("location")){
//override the key value from location to another value
 object.put("location", "N/A");

gkhays

Remove a JSON Key While Iterating

I want to remove any JSON key/value pairs wherein the value is the empty string "" or is the string literal null. However Java enumerations don't like that and will throw a ConcurrentModificationException if you attempt to remove the key and value.

JSONArray ja = loadJSONArray();
JSONObject firstJSON = ja.getJSONObject(0);
Iterator<?> iter = firstJSON.keys();
for (int i = 0; i < ja.length(); i++) {
	JSONObject json = ja.getJSONObject(i);

spearsmarketing

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