Need help parsing JSON on iPhone application

i am new in json parsing .I don't know how to send data to server[http://www.google.co开发者_如何学运维m/ig/calculator?] by use of textfield according to user input. And whatever result will come by server how will i display that data on my result label .

There is no official feature included in the SDK for parsing JSON. Have a look at the JSON Framework. Instructions are at the bottom of the page.

(Also just noticed that you asked something simliar an hour ago).