FlutterZeroGit

main() async {
  task1();
  String result = await task2();
  task3(result);
}

void task1() {
  print('タスク1完了');
}

FlutterZeroGit

main() {
  task1();
  String result = task2();
  task3(result);
}

void task1() {
  print('タスク1完了');
}

FlutterZeroGit

main() {
  task1();
  task2();
  task3();
}

void task1() {
  print('タスク1完了');
}

FlutterZeroGit

main() {
  task1();
  task2();
  task3();
}

void task1() {
  print('タスク1完了');
}

FlutterZeroGit

void main() {
  try {
    dynamic boolean = true;
    boolean++;
  } catch (e) {
    print('Error: $e');
  }
}

FlutterZeroGit

void main() {
  print('Hello World');
}

FlutterZeroGit

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatefulWidget {
  MyApp({Key? key}) : super(key: key);

  @override
  State<MyApp> createState() => _MyAppState();
}

FlutterZeroGit

import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';

class CounterNotifier extends ChangeNotifier {
  int _count = 0;

  void add() {
    _count++;
    notifyListeners();
  }

FlutterZeroGit

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  var text = 'Hello World';
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(

FlutterZeroGit

import 'package:flutter/material.dart';

void main() => runApp(MaterialApp(home: Screen1()));

class Screen1 extends StatelessWidget {
  const Screen1({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Scaffold(