``` private lateinit var movieAdapter: RecyclerView.Adapter<*> private lateinit var movieAdapt...

# android

[Sudhir Singh Khanger]

private lateinit var movieAdapter: RecyclerView.Adapter<*>
private lateinit var movieAdapter: MovieAdapter

What is the difference between declaring type as the exact class of name MovieAdapter and RecyclerView.Adapter<*>? Also what does it mean by the asterix <*>? Which one is better?

[edwardwongtl]

If you declare as RecyclerView.Adapter, then any subtype of RecyclerView.Adapter can be assign to movieAdapter. Declaring as MovieAdapter means you can only assign subtype of MovieAdapter into it.
The <*> basically means any type.

[gildor]

Check official docs about generics
https://kotlinlang.org/docs/reference/generics.html