example.dart

import 'package:flutter/material.dart';


void main() {
  runApp(MyApp());
}


class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        body: Center(
//           child: MyWidget(),
            child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: <Widget>[
          Text("Hello world",
  textAlign: TextAlign.left,
),

Text("Hello world! I'm Jack. "*4,
  maxLines: 1,
  overflow: TextOverflow.ellipsis,
),

Text("Hello world",
  textScaleFactor: 1.5,
),
        ],
      ),
        ),
      ),
    );
  }
}