java - Unable to parse Json array using Gson -

i have json array:

 [ { "id":18, "city":"הרצליה", "street":"החושלים 1", "zipcode":121209, "state":"il", "lat":32.158138, "lng":34.807838 }, { "id":19, "city":"הרצליה", "street":"אבא אבן 1", "zipcode":76812, "state":"il", "lat":32.161041, "lng":34.810410 } ] 

and have class hold data:

public class mapdata {     private int id;     private string city;     private string street;     private string state;     private int zipcode;     private double lat;     private double lng;      public mapdata(int id, string city, string street, string state,             int zipcode, double lat, double lng) {                   this.id = id;         this.city = city;         this.street = street;         this.state = state;         this.zipcode = zipcode;         this.lat = lat;         this.lng = lng;     }      public int getid() {         return id;     }     public void setid(int id) {         this.id = id;     }     public string getcity() {         return city;     }     public void setcity(string city) {         this.city = city;     }     public string getstreet() {         return street;     }     public void setstreet(string street) {         this.street = street;     }     public string getstate() {         return state;     }     public void setstate(string state) {         this.state = state;     }     public int getzipcode() {         return zipcode;     }     public void setzipcode(int zipcode) {         this.zipcode = zipcode;     }     public double getlat() {         return lat;     }     public void setlat(double lat) {         this.lat = lat;     }     public double getlng() {         return lng;     }     public void setlng(double lng) {         this.lng = lng;     }  }    

i'm trying convert json list of mapdata objects:

type type = new typetoken<list<mapdata>>(){}.gettype(); return gson.fromjson(jsonstring, type); 

but error:

java.lang.classcastexception: com.google.gson.internal.linkedtreemap cannot cast com.deliveries.models.mapdata 

what doing wrong?

i suspect method calling fromjson returning wrong type. should return list<mapdata> instead of mapdata.

something like:

public static list<mapdata> getdata(){     gson gson = new gson();     string jsonstring = "[{\"id\":18,\"city\":\"test\",\"street\":\"test 1\",\"zipcode\":121209,\"state\":\"il\",\"lat\":32.158138,\"lng\":34.807838},{\"id\":19,\"city\":\"test\",\"street\":\"1\",\"zipcode\":76812,\"state\":\"il\",\"lat\":32.161041,\"lng\":34.810410}]";     type type = new typetoken<list<mapdata>>(){}.gettype();     return gson.fromjson(jsonstring, type);      } 

i have working example of issue in gist