Have you tried it? 안되면 될때까지

https://codelabs.developers.google.com/codelabs/android-room-with-a-view/#0 Android Room with a View - Java Your Room database class must be abstract and extend RoomDatabase. Usually, you only need one instance of a Room database for the whole app. Let's make one now. Create a class file called WordRoomDatabase and add this code to it: In Android Studio, if you codelabs.developers.google.com 매우 ..