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Attempt to invoke virtual method 'org.json.JSONArrayorg.json.JSONObject.getJSONArray(java.lang.String)' on a null object reference at com.example.mind.sqlitedatabase.MainActivity$JSONParse.onPostExecute(MainActivity.java:134)
java.lang.NullPointerException: Attempt to invoke virtual method 'org.json.JSONArrayorg.json.JSONObject.getJSONArray(java.lang.String)' on a null object reference
at  com.example.mind.sqlitedatabase.MainActivity$JSONParse.onPostExecute(MainActivity.java:134)	at com.example.mind.sqlitedatabase.MainActivity$JSONParse.onPostExecute(MainActivity.java:103)	at android.os.AsyncTask.finish(AsyncTask.java:636)	at android.os.AsyncTask.access$500(AsyncTask.java:177)	at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:653)	at android.os.Handler.dispatchMessage(Handler.java:102)	at android.os.Looper.loop(Looper.java:135)	at android.app.ActivityThread.main(ActivityThread.java:5254)	at java.lang.reflect.Method.invoke(Native Method)	at java.lang.reflect.Method.invoke(Method.java:372)	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)