Question

I have an array of JSON objects. To parse these arrays and store the simply data type values, I have to make assumptions of the key names and store them accordingly.

I also know that sometimes the key’s values will be null. example {["promotion":null]} how would I parse this?

If I try to access a key whose value is null, I get a JSONException. Now this makes sense, but even if I do if(myJSObject.getString("promotion")!=null) then I will still get JSON exception when it checks

how would I do a conditional check in my code for null objects so that I can avoid the JSON exception

Answer 1

Use JSONObject.optString(String key) or optString(String key, String default).

Edit: … or isNull(String key), of course 🙂