static void Main(string[] args)
{
Person bob = new Person();
WriteLine(bob.ToString());
bob.Name = "Bob Smith";
bob.DateOfBirth = new DateTime(1965, 12, 2);
bob.FavoriteAncientWonder = WondersOfTheAncientWorld.StatueOfZeusAtOlympia;
WriteLine(
format: "{0} was born on {1:dddd, dd/MM/yyyy}",
arg0: bob.Name,
arg1: bob.DateOfBirth);
WriteLine(format:
"{0}'s favorite wonder is {1}. Its integer is {2}.",
arg0: bob.Name,
arg1: bob.FavoriteAncientWonder,
arg2: (int)bob.FavoriteAncientWonder);
bob.Children.Add(new Person());
bob.Children.Add(new Person { Name = "Zoe" });
WriteLine(
$"{bob.Name} has {bob.Children.Count} children:");
for (int child = 0; child < bob.Children.Count; child++)
{
WriteLine($" {bob.Children[child].Name}");
}
WriteLine($"{bob.Name}'s 1st child is {bob.Children[0].Name}");
// indexer
WriteLine($"{bob.Name}'s 1st child is {bob[0].Name}");
// const field
WriteLine(
$"{bob.Name} is a {Person.Species}");
// Add Friend
bob.addFriend(new Person("Edward", "Earth"));
bob.addFriend(new Person("Edwin", "Mars"));
List<Person> allFriends = bob.getFriend();
for(int idx=0; idx< allFriends.Count; idx++){
WriteLine($"{bob.Name}'s friend {idx}: {allFriends[idx].Name}");
}
for(int idx=0; idx< allFriends.Count; idx++){
string idxString = idx.ToString();
WriteLine($"{bob.Name}'s friend {idx}: {bob[idxString].Name}");
}
// calling Method
WriteLine("** WriteLine(bob.GetOrigin())");
WriteLine(bob.GetOrigin());
WriteLine("** bob.WriteToConsole()");
bob.WriteToConsole();
var fruit = bob.GetFruit();
WriteLine($"{fruit.Item1}, {fruit.Item2} there are.");
var fruitNamed = bob.GetNamedFruit();
WriteLine($"{fruitNamed.Name}, {fruitNamed.Number} there are.");
(string fruitName, int fruitNumber) = bob.GetFruit();
WriteLine($"Deconstructed: {fruitName}, {fruitNumber}");
(string fruitName, int fruitNumber) dcFruit = bob.GetFruit();
WriteLine($"Deconstructed 2: {dcFruit.fruitName}, {dcFruit.fruitNumber}");
WriteLine(bob.SayHello());
WriteLine(bob.SayHello("Edward"));
WriteLine(bob.OptionalParameters());
WriteLine(bob.OptionalParameters("Jump!", 98.5));
WriteLine(bob.OptionalParameters(command: "ALL!", active: false));
int d = 10;
int e = 20;
WriteLine(
$"Before: d = {d}, e = {e}, f doesn't exist yet!");
// simplified C# 7.0 syntax for the out parameter
bob.PassingParameters(d, ref e, out int f);
WriteLine($"After: d = {d}, e = {e}, f = {f}");
var alice = new Person
{
Name = "Alice Jones",
DateOfBirth = new DateTime(1998, 3, 7)
};
WriteLine(
format: "{0} was born on {1:dddd, dd/MM/yyyy}",
arg0: alice.Name,
arg1: alice.DateOfBirth);
var blankPerson = new Person();
WriteLine(format:"{0} of {1} was created at {2:hh:mm:ss} on a {2:dddd}.",
arg0: blankPerson.Name,
arg1: blankPerson.HomePlanet,
arg2: blankPerson.Instantiated);
var gunny = new Person(initialName:"Gunny", homePlanet:"Mars");
WriteLine(
format:"{0} of {1} was created at {2:hh:mm:ss} on a {2:dddd}.",
arg0: gunny.Name,
arg1: gunny.HomePlanet,
arg2: gunny.Instantiated);
// Things of Default
var default1 = new ThingOfDefaults();
WriteLine("** Thing of Default");
WriteLine(
format: "int: {0}, DateTime:{1}, string:{2}, {3},",
default1.Population, default1.When,
default1.Name, default1.People.Count
);
// ----------------------
// BankAccount
// ----------------------
BankAccount.InterestRate = 0.012M; // store a shared value
var jonesAccount = new BankAccount
{
AccountName= "Mrs. Jones",
Balance= 2400
};
WriteLine(format: "{0}'s Balanace is {1:N} earned {2:C} interest.",
arg0: jonesAccount.AccountName,
arg1: jonesAccount.Balance,
arg2: jonesAccount.Balance * BankAccount.InterestRate);
var gerrierAccount = new BankAccount();
gerrierAccount.AccountName = "Ms. Gerrier";
gerrierAccount.Balance = 98;
WriteLine(format: "{0}'s Balanace is {1:N} earned {2:C} interest.",
arg0: gerrierAccount.AccountName,
arg1: gerrierAccount.Balance,
arg2: gerrierAccount.Balance * BankAccount.InterestRate);
// Try Property
var sam = new Person(initialName:"Sam", homePlanet:"Mars", initBirth: new DateTime(1972, 1, 27));
WriteLine(sam.Origin);
WriteLine(sam.Greeting);
WriteLine(sam.Age);
sam.FavoriteIceCream = "Stars";
WriteLine($"{sam.Name}'s favorite icecream is {sam.FavoriteIceCream}");
sam.FavoritePrimaryColor="red";
WriteLine($"{sam.Name}'s favorite Color is {sam.FavoritePrimaryColor}");
try{
sam.FavoritePrimaryColor="yellow";
}
catch (ArgumentException argEx){
WriteLine($"{argEx.GetType()} says {argEx.Message}");
}
// --------------------------------------
// Flight Patterns(object pattern matching)
// --------------------------------------
WriteLine("// -------------------------------");
WriteLine("//Flight Patterns(object pattern matching");
WriteLine("// -------------------------------");
var passengers = new object[5]{
new FirstClassPassenger { AirMiles = 1_419 },