While parsing a JSON, strange exception occurs as :This is not a JSON Array
Because it is a Json Object
JsonObject json = json.get("clouds").getAsJsonObject()It will work...
Or you can change the data as given below
{ "coord" : {"lon":37.62,"lat":55.75}, "weather":{"id":803,"main":"Clouds","description":"test","icon":"04d"}, "base" :"stations", "main" :{"temp":12.76,"pressure":1007,"humidity":93,"tempmin":12,"tempmax":14}, "visibility":6000, "wind" :{"speed":4,"deg":300}, "clouds" :[{"all":75}], "dt":1504881000, "sys" :{"type":1,"id":7325,"message":0.0064,"country":"RU","sunrise":1504838942,"sunset":1504886617}, "id" :524901, "name" :"City", "cod" :200 }