class MyHomePage extends StatefulWidget{
  const MyHomePage({super.key});

  @override
  State<MyHomePage> createState() => MyHomePageState();
  }

  class MyHomePageState extends State<MyHomePage>{
    String _name = "Sumi";
    Widget build(BuildContext context){
      return Scaffold(
        body: Center(child: ElevatedButton(
          child: Text(_name),
          onPressed: (){
            setState(() {
              
            });
            _name = _name == "Sumi"?"Roma":"Sumi";
          },
        ),
      ),
     );
    }
  }