Sample of characters inside boxes

boxed_letters.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: Row(
            mainAxisAlignment: MainAxisAlignment.center,
            children: "CSE164078"
                .split('')
                .map(
                  (c) => Container(
                    width: 50,
                    decoration: BoxDecoration(
                      border: Border.all(color: Colors.black),
                    ),
                    child: Text(
                      c,
                      textAlign: TextAlign.center,
                      style: TextStyle(fontSize: 40),
                    ),
                  ),
                )
                .toList(),
          ),
        ),
      ),
    );
  }
}