benznest

class Spacecraft{
  String name;
  bool available;
  
  Spacecraft(this.name,this.available);
  
  String get getFullName => "The spacraft name is "+name;
}

class Astronaut{

benznest

class Spacecraft{
  String name;
  bool available;
  List<Astronaut> astronauts;
}

class Astronaut{
  String name;
}

benznest

class Astronaut{
  bool isAlive () => true;
}

main(){
  Astronaut astronaut = Astronaut();
  print(astronaut.isAlive());  // true
}

benznest

main(){
  String name;
  name ??= "benznest";
  print(name); // "benznest"
}

benznest

class Spacecraft{
  Astronaut astronaut;
}

class Astronaut{
  String name;
}

main(){
  Spacecraft sc = Spacecraft ();

benznest

main(){
  String name;
  print(name ?? "benznest");  // benznest
}

benznest

main(){
  List<int> list = [1,2,3,4];
  String str = list.isNotEmpty ? "available" : "none";
  print(str);
}

benznest

class Person{
  String name;
}

main(){
  Person person = Person();
  person.name = "benznest";
  
  int money = 100;
  

benznest

import 'dart:ui';

class Animal {
  int id;
  String name;
  Color background;
  Color textColor;

  Animal({this.id, this.name, this.background, this.textColor});
}

benznest

import 'package:flutter/material.dart';
import 'package:flutter_hello/my_inherited_widget_data.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',