android - How to parse JSON eliminating nullpointer exception -

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i trying parse json creating json object result string, parse json array , looping through it.

jsonobject jsonobject = new jsonobject(json_string)

json_string being result of url execution. json looks this.

{"resulto":[{"surname":null,"firstname":null,"nrc":null}]}

the line jsonobject = new jsonobject brings null pointer exception. how fix this?

the exception coming because json_string null or empty better check if (!textutils.isempty(json_string)) {}before proceeding. if key has null value key_value:null jsonobject never throws exception instead set value string "null".


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