//static async Task Main() - C# 7.1
static async Task Main()
{
#region C# 1.0
//value types, reference types, boxing vs unboxing
// ValueTypesExample.ExecuteExample();
// ReferenceTypesExample.ExecuteExample();
// BoxingUnboxing.ExecuteExample();
//classes
//TestPerson.ExecuteExample();
//interfaces
//InterfaceExample.ExecuteExample();
//events
//EventExample.ExecuteExample();
//EventExample2.ExecuteExample();
//delegates
//DelegateExample.ExecuteExample();
//atributes
//AttributeExample.ExecuteExample();
#endregion
#region C# 1.2
//ForEachIDisposable.ExecuteExample();
//ReflectionTest.ExecuteExample();
//UnsafeTest.ExecuteExample();
//CheckUncheck.ExecuteExample();
//ConstructorsDestructors.ExecuteExample();
//UsingTest.ExecuteExample();
#endregion
#region C# 2.0
//GenericsTest.ExecuteExample();
//PartialTypes.ExecuteExample();
//AnonymousMethods.ExecuteExample();
//NullableValueTypes.ExecuteExample();
//Iterators.ExecuteExample();
//CovarianceContravariance.ExecuteExample();
#endregion
#region C# 3.0
// AutoImplementedPropertiesTest.ExecuteExample();
// AnonymousTypesTests.ExecuteExample();
// QueryExpressionsTests.ExecuteExample();
// LambdaExpressionsTest.ExecuteExample();
// ExpressionTreesTest.ExecuteExample();
//ExtensionMethodsTest.ExecuteExample();
//CSharpStudy.Test.Test.Execute();
#endregion
#region C# 4.0
//DynamicTest.ExecuteExample();
//CovariantContravariantGenericTypesTest.ExecuteExample();
#endregion
#region C# 5.0
//CallerInfoAttributesTest.ExecuteExample();
#endregion
#region C# 6.0
//AutoPropertyInitializer.ExecuteExample();
//NullConditionalOperator.ExecuteExample();
// StringInterpolation.ExecuteExample();
//ExceptionFilters.ExecuteExample();
//NameOfExpression.ExecuteExample();
// AwaitCatchFinally.ExecuteExample();
#endregion
#region C# 7.0
//DigitBinarySeparator.ExecuteExample();
//PatternMatching.ExecuteExample();
//RefReturns.ExecuteExample();
//Tuples.ExecuteExample();
#endregion
#region C# 7.1
//await new AsyncMain().ExecuteExample();
//DefaultLiteralExpressions.ExecuteExample();
//InferredTupleNames.ExecuteExample();
//GenericPatternMatching.ExecuteExample();
#endregion
#region C# 7.2
//NonTrailingNamedArguments.ExecuteExample();
//PrivateProtected.ExecuteExample();
//RefConditional.ExecuteExample();
#endregion
#region C# 7.3
#endregion
#region C# 8.0
//PatternMatchingNew.ExecuteExample();
//UsingDeclarations.ExecuteExample();
//await AsyncStreams.ExecuteExample();
//ndicesRanges.ExecuteExample();
#endregion
#region C# 9.0
// RecordType.ExecuteExample();
// HalfClass.ExecuteExample();
// PatternMatchingImprovements.ExecuteExample();
#endregion
#region C# 10
// GlobalUsings.ExecuteExample();
// FileScopedNamespace.ExecuteExample();
// ExtendedPropertyPatterns.ExecuteExample();
// ConstantInterpolationString.ExecuteExample();
// RecordStruct.ExecuteExample();
// LambdaImprovements.ExecuteExample();
NullCheck.ExecuteExample();
#endregion
#region Features
//IndexesRanges.ExecuteExample();
var x = new DirectoryInfo(@"C:\temp\directory");
#endregion
#region C# Basic
//Console.WriteLine("Hello World!");
#region Section 3 - Primitive Types and Extensions
//const float Pi = 3.14F;
// Byte b = 1;
// byte b = 2;
//overflowing
//byte number = byte.MaxValue;
////number = number++;
//number = ++number; //0
//number = ++number; //1
//Console.WriteLine(number); //1
//byte number = 255;
//number += 2;
//Console.WriteLine(number);
//checked
//{
// //number = number + 1; //exception
//}
//overflowing
// try
// {
// unchecked {
// Int32 x = Int32.MaxValue;
// x = x + 1;
// System.Console.WriteLine(x);
// }
// }
// catch (System.Exception ex)
// {
// System.Console.WriteLine("erro " + ex.Message);
// //throw;
// }
//Console.WriteLine()
//scope:
//{
// byte a = 1;
// {
// byte b = 2;
// }
//}
//Console.WriteLine(a); //not accessible in tis context
// var number = 2;
// var letterA = 'A';
// var totalPrice = 12.02;
// float x = 12.23f;
// const float y = 12.34f;
//System.Console.WriteLine("{0} {1}", byte.MinValue, byte.MaxValue);
//implicit type conversion
// byte b = 1;
// int i = b;
//explicit type conversion
// int i = 1;
// byte b = (byte) i;
//short s = short.MaxValue;
//byte b = (byte)s; //255
//float f = 1.0f;
//int i = (int)f; //1
// string x = "1";
// int i = Convert.ToInt32(x);
// int j = int.Parse(x);
//non-compatible types
//string x = "1";
//int i = Convert.ToInt32(x);
//int z = int.Parse(x);
// string str1="9009";
// string str2=null;
// string str3="9009.9090800";
// string str4="90909809099090909900900909090909";
// int finalResult;
// finalResult = int.Parse(str1); //success
// finalResult = int.Parse(str2); // ArgumentNullException
// finalResult = int.Parse(str3); //FormatException
// finalResult = int.Parse(str4); //OverflowException
// finalResult = Convert.ToInt32(str1); // 9009
// finalResult = Convert.ToInt32(str2); // 0
// finalResult = Convert.ToInt32(str3); //FormatException
// finalResult = Convert.ToInt32(str4); //OverflowException
// bool output;
// output = int.TryParse(str1,out finalResult); // 9009
// output = int.TryParse(str2,out finalResult); // 0
// output = int.TryParse(str3,out finalResult); // 0
// output = int.TryParse(str4, out finalResult); // 0
// Console.WriteLine((float) 10 / (float) 3);
// byte number = 255;
// number += 2;
// System.Console.WriteLine(byte.MaxValue);
#endregion
#region Section 4 - Non-Primitive Types
//var x = new int[3] { 1, 2, 3 };
//string x = "abc";
//string z = x;
//z = "cde";
//Console.WriteLine($"x: {x} - z: {z}");
// var john = new Person();
// john.FirstName = "John";
// john.LastName = "Smith";
// john.Introduce();
// var calc = new Calculator();
// System.Console.WriteLine(calc.Add(1,2));
//arrays
// var numbers = new int[3] {1, 2, 3};
// System.Console.WriteLine(string.Join(",", numbers));
//var x = "asdasdasd";
//Console.WriteLine(ShippingMethod.Express); //Express
//System.Console.WriteLine((int)ShippingMethod.Express); //3
//var methodId = 3;
//System.Console.WriteLine((ShippingMethod)methodId); //Express
//System.Console.WriteLine(ShippingMethod.Express.ToString()); //Express
//var methodName = "Express";
//var shipping = (ShippingMethod)Enum.Parse(typeof(ShippingMethod), methodName);
//Console.WriteLine(shipping); //Express
//Reference Types and Value Types
// var a = 10;
// var b = a;
// b++;
// var arr = new int[3] {1, 2, 3};
// var arr2 = arr;
// arr2[2] = 0;
// System.Console.WriteLine(arr[2]);
// System.Console.WriteLine(arr2[2]);
// byte number = byte.MaxValue;
// number = number++;
// number = number++;
// number = ++number;
// number = ++number;
// Console.WriteLine(number);
//Console.WriteLine(TaxCalculator.Calculate());
#endregion
#region Section 5 - Control Flow
//var role = "as";
//switch (role)
//{
// case "a":
// case "b":
// System.Console.WriteLine("as");
// break;
// default:
// System.Console.WriteLine("Default");
// break;
//}
// System.Console.WriteLine("type your name: ");
// var input = Console.ReadLine();
// System.Console.WriteLine(input);
//var random = new Random();
//random.Next(-1,2);
// System.Console.WriteLine((int)'a');
// System.Console.WriteLine((char)100);
#endregion
#region Secion 6 - Arrays
// var numbers = new int[4] {1, 2, 3, 3}; //single-dimensional
//multi dimension arrays:
//rectangular 2D array
// var matrix = new int[3,5]{
// {1,2,3,4,5},
// {1,2,3,4,5},
// {1,2,3,4,5}
// };
// var el = matrix[1,2];
// //jagged array
// var arr = new int[3][];
// arr[0] = new int[3];
// arr[1] = new int[3];
// arr[2] = new int[3];
// var el = arr[0][2];
// var numbers = new [] {3, 2, 4,5, 3, 5 , 12};
// System.Console.WriteLine(numbers.Length);
// System.Console.WriteLine(Array.IndexOf(numbers, 4));
// Array.Clear(numbers,0,2);
// var anotherArray = new int[2];
// Array.Copy(numbers, anotherArray, 2);
// System.Console.WriteLine("numb");
// Array.Sort(numbers);
// Array.Reverse(numbers);
// foreach (var item in numbers)
// {
// System.Console.WriteLine(item);
// }
//working with lists
// var numbers = new List<int>() {1, 2, 3};
// numbers.AddRange(new int[]{3, 4,5,6,1, 1,1});
// foreach (var number in numbers)
// {
// System.Console.WriteLine(number);
// }
// System.Console.WriteLine("Index of 3: " + numbers.IndexOf(3));
// System.Console.WriteLine("Index of 3: " + numbers.LastIndexOf(3));
// System.Console.WriteLine("Count: " + numbers.Count);
// //numbers.Remove(1);
// numbers.RemoveAll(_ => _.Equals(1));
// foreach (var number in numbers)
// {
// System.Console.WriteLine(number);
// }
#endregion
#region Section 7 - Dates and Times
// System.Console.WriteLine(DateTime.Today);
// System.Console.WriteLine(DateTime.Now);
// System.Console.WriteLine(DateTime.Now.ToString("dd/MM/yyyy hh:mi:ss"));
// System.Console.WriteLine(DateTime.Now.ToLongDateString());
// System.Console.WriteLine(DateTime.Now.ToShortDateString());
// System.Console.WriteLine(DateTime.Now.ToLongTimeString());
// System.Console.WriteLine(DateTime.Now.ToShortTimeString());
// var timeSpan = new TimeSpan(1,2,3);
// var timeSpan2 = new TimeSpan(1,0,0);
// var timeSpan3 = TimeSpan.FromHours(1);
// System.Console.WriteLine(timeSpan.Minutes);
// System.Console.WriteLine(timeSpan.TotalMinutes);
// System.Console.WriteLine(timeSpan);
// System.Console.WriteLine(timeSpan.Add(TimeSpan.FromMinutes(8)));
// System.Console.WriteLine(TimeSpan.Parse("01:12:23"));
#endregion
#region Section 8 - Text
// var fullName = " ";
// System.Console.WriteLine(String.IsNullOrWhiteSpace(fullName));
// var price = 12.12F;
// System.Console.WriteLine(price.ToString("C3"));
// var sb = new StringBuilder("tittle");
// sb.Append('-', 10)
// .AppendLine()
// .Append("asasdasd")
// .Insert(0, new string('a', 20));
//var x = sb.ToString().IndexOf('t');
//System.Console.WriteLine(sb);
#endregion
#region Section 9 - Files and Directories
//File, FileInfo, Directory, DirectoryInfo, Path
#endregion
#endregion
#region C# Intermediate
#region Section 2 - Classes
//var p = Person2.Parse("john");
//var customer = new Customer(1);
//Console.WriteLine(customer.Id);
//Console.WriteLine(customer.Name);
// var order = new Order();
// customer.Orders.Add(order);
// var point = new Point(10, 20);
// point.Move(new Point(40,20));
// System.Console.WriteLine(point.X);
//var calculator = new Calculator();
// System.Console.WriteLine(calculator.Add(1,2,3));
// System.Console.WriteLine(calculator.Add(new int[]{1,23,4,5}));
// try
// {
// var x = int.Parse("asbc");
// }
// catch (System.Exception)
// {
// System.Console.WriteLine("Conversion vailed");
// }
// int number;
// var result = int.TryParse("123", out number);
// var cookie = new HttpCookie();
// cookie["name"] = "mosh";
// System.Console.WriteLine(cookie["name"]);
#endregion
#region Section 3 - Association between classes
// var text = new Text();
// text.Width = 100;
// text.Copy();
// var dbMigrator = new DbMigrator(new Logger());
// var logger = new Logger();
// var installer = new Installer(logger);
// dbMigrator.Migrate();
// installer.Install();
#endregion
#region Section 4 - Inheritance
//var customer = new Customer();
//var car = new Car("123123123");
//upcasting
// var text = new Text(10,"asd");
// Shape shape = text;
// text.Width = 200;
// shape.Width = 100;
// System.Console.WriteLine(text.Width);
// StreamReader reader = new StreamReader(new MemoryStream());
// StreamReader reader = new StreamReader(new FileStream());
//downcasting
// Shape shape = new Text(12, "adasd"); //shape has limited vision
// Text text = (Text) shape;
//boxing
// var list = new ArrayList();
// list.Add(1); //boxing will happen, get back unboxing
// list.Add("asdas"); //not boxing
// list.Add(DateTime.Today); //will boxing
// var number = (int)list[1]; //InvalidCastException
// var anotherList = new List<int>();
// anotherList.Add(1); //type safety with no boxing
// var names = new List<string>();
// names.Add("");//no boxing
#endregion
#region Section 5 - Polymorphism
// var x = new Circle();
// x.Draw();
// var shapes = new List<Shape>();
// shapes.Add(new Circle());
#endregion
#region Section 6 - Interfaces
#endregion
#endregion
#region C# Advanced
//Generics:
//var numbers = new GenericList<int>();
//numbers.Add(10);
// var books = new GenericList<Book>();
// books.Add(new Book());
// var dictionary = new GenericDictionary<string, Book>();
// dictionary.Add("123", new Book());
// var number = new Nullable<int>();
// System.Console.WriteLine("HasValue? " + number.HasValue);
// System.Console.WriteLine("Actual value: " + number.GetValueOrDefault());
////Delegates:
//var processor = new PhotoProcessor();
//var filters = new PhotoFilters();
////PhotoProcessor.PhotoFilterHandler filterHandler = filters.Resize;
//Action<Photo> filterHandler = filters.Resize;
//filterHandler += filters.ApplyContrast;
//filterHandler += RemoveRedEye;
//processor.Process("photo.jpg", filterHandler);
//Lambda Expressions:
// System.Console.WriteLine(Square(4));
// Func<int, int> square = number => number * number;
// System.Console.WriteLine(square(5));
// const int factor = 5;
// Func<int, int> multiplier = n => n * factor;
// System.Console.WriteLine(multiplier(3));
// var books = new BookRepository().GetBooks();
// var cheapBooks = books.FindAll(IsCheaperThan10Dollars);
// var cheapBooksLambda = books.FindAll(b => b.Price < 10);
// foreach (var book in cheapBooks)
// {
// System.Console.WriteLine(book.Title);
// }
//Events and Delegates:
//var video = new Video() { Title = "Video 1" };
//var videoEncoder = new VideoEncoder(); //publisher
//var mailService = new MailService(); //subscriber
//var messageService = new MessageService(); //subscriber
//videoEncoder.VideoEncoded += mailService.OnVideoEncoded; //subscription
//videoEncoder.VideoEncoded += messageService.OnVideoEncoded;
//videoEncoder.Encode(video);
//Extension Methods:
//var post = "this is a big string, that it is very long and we need ssss";
//var shortenedPost = post.Shorten(5);
//System.Console.WriteLine(shortenedPost);
//LINQ:
//var books = new BookRepository().GetBooks();
//LINQ Query Operators:
// var cheapBooks1 =
// from b in books
// where b.Price < 50
// orderby b.Title descending
// select b.Title;
//LINQ Extension Methods
// var cheapBooks = books.Where(b => b.Price < 50)
// .OrderByDescending(b => b.Price)
// .Select(b => b.Title);
// foreach (var book in cheapBooks)
// {
// //System.Console.WriteLine(book.Title + " - " + book.Price);
// System.Console.WriteLine(book);
// }
// var pagedBooks = books.Skip(2).Take(30);
// foreach (var book in pagedBooks)
// {
// System.Console.WriteLine(book.Title);
// }
// System.Console.WriteLine(book);
//Nullable Types:
// Nullable<DateTime> date = null;
//DateTime? date2 = null;
//DateTime dataX = date2;
// DateTime dataX = date2 ?? DateTime.Today;//date2.GetValueOrDefault();
// DateTime? date3 = date2;
//Dynamic:
//object obj = "mosh";
//obj.GetHashCode()
//reflexion
// var methodInfo = obj.GetType().GetMethod("GetHashCode");
// methodInfo.Invoke(null, null);
//using dynamic
// dynamic obj2 = "mosh";
// obj2 = 1;
// System.Console.WriteLine(obj2);
// obj2.Optimize();
// int i = 5;
// dynamic d = i;
// long l = d;
//Exception Handling:
// try
// {
// using (StreamReader r = new StreamReader(@"asdasd"))
// {
// }
// var calc = new Calculator();
// calc.Divide(1, 0);
// }
// catch (DivideByZeroException ex){
// }
// catch (ArithmeticException ex){
// }
// catch (Exception ex)
// {
// System.Console.WriteLine("error");
// throw new CustomizedException("Customized", ex);
// }
//Asynchronous Programming with Async/Await
//DownloadHtmlAsync("http://www.google.com");
//DownloadAsync("http://www.google.com");
//var t = GetHtmlAsync("http://www.google.com");
//Parallel
//ParallelVsForEach.ExecuteExample();
#endregion
#region C# 2.0
#endregion
#region C# 7.0
//TUPLAS
//Tuplas.ExecuteExample();
//REF RETURNS
//RefReturns.ExecuteExample();
//PATTERN MATCHING
//PatternMatching.ExecuteExample();
//PATTERN MATCHING 2:
//PatternMatching2.ExecuteExample();
//LOCAL FUNCTIONS
//LocalFunctions.ExecuteExample();
//DIGIT SEPARATORS
//DigitSeparator.ExecuteExample();
//OUT VARIABLES
//OutVariables.ExecuteExample("12");
//EXPRESSION BODIED
//var exp = new ExpressioBodied("descricao");
//exp.Label = "descricao modificada";
//Console.WriteLine(exp.Label);
//VALUE TASKS:
//ValueTasks2.ExecuteExample();
//PATTERN MATCHING
//PatternMatching.ExecuteExample();
#endregion
#region Functional Programming
#endregion
#region Searching Techniques
//linear search: consider every single item on a one by one basis
// int[] numbers = {1,32,5,12,53,65,7,234};
// var index = LinearSearch.returnIndex(numbers, 53);
// Console.WriteLine($"Value search: 53. Index found is {index}, in array [{string.Join(",",numbers)}].");
//binary search: the target value is compared with de middle element of a sorted array.
// int[] numbers = {1,20,25,32,45,50,70,80};
// var index = BinarySearch.returnIndex(numbers, 0, numbers.Length, 50);
// Console.WriteLine($"Value search: 50. Index found is {index}, in array [{string.Join(",",numbers)}].");
//
#endregion
#region Best Practices for Developers
#endregion
#region Other
//RuntimePolymorphismExample.Execute();
//structs
//StructSample.ExecuteExample();
//Properties
// var prop = new PropertiesExample();
// Console.WriteLine(prop.FirstName);
// var prop2 = new PropertiesExample("asdasdasd");
// Console.WriteLine(prop2.FirstName);
// prop2.ChangePropert = "ddddddddddddd";
// Console.WriteLine(prop2.FirstName);
//expressions: is a sequence of one or more operands and zero or more operators that can be evaluated to a single value, object, method, or namespace
//((x < 10) && ( x > 5)) || ((x > 20) && (x < 25));
//System.Convert.ToInt32("35");
//statements: the action that a program takes (assign, declaration)
//yield: A type of statement
//attributes: Attributes add metadata to your program
//YieldExample.ExecuteExample();
//literals: constants refer to fixed values that the program may not alter during its execution - fixed values
//ex: \n \t floating-point: 3.14159 string: @"asdasd" const
//value types:
//ValueTypesExample.ExecuteExample();
//reference types:
//ReferenceTypesExample.ExecuteExample();
#endregion
}
