How to check if a JSON key exists?

android, java, json

Solution

JSONObject class has a method named "has":

http://developer.android.com/reference/org/json/JSONObject.html#has(java.lang.String)

Returns true if this object has a mapping for name. The mapping may be NULL.

Problem

So, I get some JSON values from the server but I don't know if there will be a particular field or not. So like: ``` { "regatta_name":"ProbaRegatta", "country":"Congo", "status":"invited" } ``` And sometimes, there will be an extra field like: ``` { "regatta_name":"ProbaRegatta", "country":"Congo", "status":"invited", "club":"somevalue" } ``` I would like to check if the field named "club" exists so that at parsing I won't get org.json.JSONException: No value for club

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