android - Retrieve Firebase Data saved with push() -

i have firebase database.when im saving data used push() generate auto increment key.

now db this

    recipe{      categories{      -kjxzi0jbe1sy5ccfgqf{         name: "sri lankan"         }       }     } 

when im retrieving data got error

w/classmapper: no setter/field -kjxz53rlic4rzpvjk48 found on class com.kosala.uyamu2.data_category

this data_category bean

public class data_category {      string name;      public data_category() {}     public data_category(string name) {         this.name = name;}     public string getname() {         return name;}     public void setname(string name) {         this.name = name;}} 

this retrieving data

mdatabase.child("recipe").child("categories").addlistenerforsinglevalueevent(new valueeventlistener() {                     @override                     public void ondatachange(datasnapshot datasnapshot) {                         data_category data = datasnapshot.getvalue(data_category.class);                         log.d("name", data.getname());                     }                      @override                     public void oncancelled(databaseerror databaseerror) {                      }                 }); 

can 1 me here.thanks.

use

 public void ondatachange(datasnapshot datasnapshot) {        (datasnapshot data : datasnapshot.getchildren())                       data_category category = data.getvalue(data_category.class);        }  }