CheckBox example in Flutter

main.dart

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Checkbox Example',
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  bool isChecked = false;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Checkbox Example'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Text(
              isChecked ? 'Checkbox is Checked!' : 'Checkbox is Unchecked',
              style: TextStyle(fontSize: 18),
            ),
            SizedBox(height: 20),
            Checkbox(
              value: isChecked,
              onChanged: (value) {
                setState(() {
                  isChecked = value!;
                });
              },
            ),
          ],
        ),
      ),
    );
  }
}