MainActivity.kt

class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        // This is the block where we will call our
        // Composable Functions
        setContent {
            GreetUser("DEEJAY")
        }
    }

    @Composable
    fun GreetUser(name: String) {
        Text(text = "Hello $name!")
    }
}