# 03 Flutter: Buttons and Stateful widgets

{% code title="main.dart" %}

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

void main() {
  runApp(new MaterialApp(
    home: new AwesomeButton()
  ));
}

class AwesomeButton extends StatefulWidget {
  @override
  AwesomeButtonState createState() => new AwesomeButtonState();
}

class AwesomeButtonState extends State<AwesomeButton> {

  int counter = 0;
  List<String> strings = ["Flutter", "Is", "Awesome"];
  String displayedString = "";

  //you can also declare variables like this
  // var counter = 0;
  // var strings = ["Flutter", "Is", "Awesome"];

  void onPressed(){
    setState(() {
      displayedString = strings[counter];
      counter = counter < 2 ? counter+1 : 0;
    });
  }

  @override
  Widget build(BuildContext context){
    return new Scaffold(
      appBar: new AppBar(title: new Text("Stateful Widget!"), backgroundColor: Colors.deepOrange),
      body: new Container(
        child: new Center(
          child: new Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: <Widget>[
              new Text(displayedString, style: new TextStyle(fontSize: 30.0, fontWeight: FontWeight.bold)),
              new Padding(padding: new EdgeInsets.all(15.0)),
              new RaisedButton(
                child: new Text("Press me!", style: new TextStyle(color: Colors.white, fontStyle: FontStyle.italic, fontSize: 20.0)),
                color: Colors.red,
                onPressed: onPressed
              )
            ]
          )
        )
      )
    );
  }
}

```

{% endcode %}

![](/files/-LGEpBM0yQdrGFNf6FnA)


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://kodestat.gitbook.io/flutter/flutter-buttons-and-stateful-widgets.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.