Golang : Get the value from list element

http://play.golang.org/p/TE02wFCprM I am getting error panic when I try to get the value from a struct which is from list. ``` fmt.Println(A_elem.Value.(Player).year) //3000 ``` What I did is make a list and add structures into the list. When I retrieve the element from the list, it is in interface type. But still if I print out the whole interface type value, it has structure values in it. So I tried to get one value of structure but getting the panic error. This line is working well. ``` fmt.Println(A_elem.Value) //&{dddd 3000} ``` code is here ``` package main import ( "container/list" "fmt" ) func main() { type Player struct { name string year int } A := new(Player) A.name = "aaaa" A.year = 1990 B := new(Player) B.name = "eeee" B.year = 2000 C := new(Player) C.name = "dddd" C.year = 3000 play := list.New() play.PushBack(A) play.PushBack(B) play.PushBack(C) A_elem := play.Back() //A_elem.Value is type Player struct fmt.Println(A_elem.Value) //&{dddd 3000} fmt.Println(A_elem.Value.(Player).year) //3000 } ``` I want to save structures in the list and be able to retrieve the specific values from one of the structures that are saved in list. How could I do it? Thanks in advance.