For Loop While Loop Do While Looping Statement Using Flutter App

import 'package:flutter/material.dart';

void main(){
  runApp(MyApp());
}
class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: MyHomePage(),
    );
  }
}
class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> with SingleTickerProviderStateMixin {
  void callForLoop(){
    for(int i = 0; i <= 20; i++){
      print('For Loop Called $i Times');
    }

  }

  void callWhileLoop(){
    int i = 0 ;
    while( i <= 5 ){
      print('While Loop Called $i Times');
      i++ ;
    }
  }

  void callDoWhileLoop(){
    int i = 0 ;
    do{
      print('Do While Loop Called $i Times');
      i++;
    }while ( i < 5 );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.black,
      appBar: AppBar(
        backgroundColor: Colors.red[600],
        title: Text('Loop statement'),
      ),
            body: Center(
                child: Column(
                    mainAxisAlignment: MainAxisAlignment.center,
                    children: <Widget>[
                      Container(
                          child: RaisedButton(
                            onPressed: () => callForLoop(),
                            child: Text('Call For Loop'),
                            textColor: Colors.white,
                            color: Colors.red[700],
                          )
                      ),

                      Container(
                          child: RaisedButton(
                            onPressed: () => callWhileLoop(),
                            child: Text('Call While Loop'),
                            textColor: Colors.white,
                            color: Colors.red[400],
                          )
                      ),

                      Container(
                          child: RaisedButton(
                            onPressed: () => callDoWhileLoop(),
                            child: Text('Call Do-While Loop'),
                            textColor: Colors.white,
                            color: Colors.red[700],
                          )
                      ),

                    ])
            )
    );
  }
}