gistfile1.txt

// Using R.layout.activity_main from the main source set
import kotlinx.android.synthetic.main.activity_main.*
 
public class MyActivity : Activity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        textView.setText("Hello, world!") // Instead of findView(R.id.textView) as TextView
   }
}