private static void DemoMethodWithTuples(Person p1)
{
// Exercise: Define methods with tuples
Tuple <string, int> fruit4 = p1.GetFruitCS4();
WriteLine($"There are {fruit4.Item2} {fruit4.Item1}.");
(string, int)fruit7 = p1.GetFruitCS7();
WriteLine($"{fruit7.Item1}, {fruit7.Item2} there are.");
// Exercise: Specify the name of the fields
var fruitNamed = p1.GetNamedFruit();
WriteLine($"Are there {fruitNamed.Number} { fruitNamed.Name}?");
//Exercise: Deconstruct tuples into separate variables
(string fruitName, int fruitNumber) = p1.GetFruitCS7();
WriteLine($"Deconstructed: {fruitName}, {fruitNumber}");
}
static void Main(string[] args)
{
var p1 = new Person();
p1.Name = "Bob Smith";
p1.DateOfBirth = new System.DateTime(1965, 12, 22);
WriteLine($"{p1.Name} was born on {p1.DateOfBirth:dddd, d MMMM yyyy}");
var p2 = new Person
{
Name = "Alice Jones",
DateOfBirth = new DateTime(1998, 3, 17)
};
WriteLine($"{p2.Name} was born on {p2.DateOfBirth:d MMMM yy}");
p1.FavouriteAncientWonder = WondersOfTheAncientWorld.StatueOfZeusAtOlympia;
WriteLine($"{p1.Name}'s favourite wonder is {p1.FavouriteAncientWonder}");
p1.BucketList = WondersOfTheAncientWorld.HangingGardensOfBabylon |
WondersOfTheAncientWorld.MausoleumAtHalicarnassus;
// p1.BucketList = (WondersOfTheAncientWorld)18;
WriteLine($"{p1.Name}'s bucket list is {p1.BucketList}");
p1.Children.Add(new Person {
Name = "Alfred"
});
p1.Children.Add(new Person {
Name = "Zoe"
});
WriteLine($" {p1.Name} has {p1.Children.Count} children:");
for (int child = 0; child < p1.Children.Count; child++)
{
WriteLine($" {p1.Children[child].Name}");
}
BankAccount.InterestRate = 0.012M;
var ba1 = new BankAccount();
ba1.AccountName = "Mrs. Jones";
ba1.Balance = 2400;
WriteLine($"{ba1.AccountName} earned {ba1.Balance * BankAccount.InterestRate:C} interest.");
var ba2 = new BankAccount();
ba2.AccountName = "Ms. Gerrier";
ba2.Balance = 98;
WriteLine($"{ba2.AccountName} earned {ba2.Balance * BankAccount.InterestRate:C} interest.");
WriteLine($"{p1.Name} is a {Person.Species}");
var p3 = new Person();
WriteLine($"{p3.Name} was instantiated at {p3.Instantiated:hh:mm:ss} on {p3.Instantiated:dddd, d MMMM yyyy}");
var p4 = new Person("Aziz");
WriteLine($"{p4.Name} was instantiated at { p4.Instantiated:hh:mm:ss} on { p4.Instantiated:dddd, d MMMM yyyy}");
p1.WriteToConsole();
WriteLine(p1.GetOrigin());
Tuple <string, int> fruit4 = p1.GetFruitCS4();
WriteLine($"There are {fruit4.Item2} {fruit4.Item1}.");
(string, int)fruit7 = p1.GetFruitCS7();
WriteLine($"{fruit7.Item1}, {fruit7.Item2} there are.");
var fruitNamed = p1.GetNamedFruit();
WriteLine($"Are there {fruitNamed.Number} {fruitNamed.Name}?");
// C# 7.0
var thing1 = ("Neville", 4);
WriteLine($"{thing1.Item1} has {thing1.Item2} children.");
var thing2 = (p1.Name, p1.Children.Count);
WriteLine($"{thing2.Item1} has {thing2.Item2} children.");
// C# 7.1
var thing3 = (p1.Name, p1.Children.Count);
WriteLine($"{thing3.Name} has {thing3.Count} children.");
// деконструкция кортежей
(string fruitName, int fruitNumber) = p1.GetFruitCS7();
WriteLine($"Deconstructed: {fruitName}, {fruitNumber}");
WriteLine(p1.SayHello());
WriteLine(p1.SayHello("Emily"));
WriteLine(p1.OptionalParameters());
WriteLine(p1.OptionalParameters("Jump!", 98.5));
WriteLine(p1.OptionalParameters(number: 52.7, command: "Hide!"));
WriteLine(p1.OptionalParameters("Poke!", active: false));
int a = 10;
int b = 20;
int c = 30;
WriteLine($"Before: a = {a}, b = {b}, c = {c}");
p1.PassingParameters(a, ref b, out c);
WriteLine($"After: a = {a}, b = {b}, c = {c}");
// упрощенный синтаксис параметров out в C# 7
int d = 10;
int e = 20;
WriteLine($"Before: d = {d}, e = {e}, f doesn't exist yet!");
p1.PassingParameters(d, ref e, out int f);
WriteLine($"After: d = {d}, e = {e}, f = {f}");
var sam = new Person
{
Name = "Sam",
DateOfBirth = new DateTime(1972, 1, 27)
};
WriteLine(sam.Origin);
WriteLine(sam.Greeting);
WriteLine(sam.Age);
sam.FavoriteIceCream = "Chocolate Fudge";
WriteLine($"Sam's favorite ice-cream flavor is {sam.FavoriteIceCream}.");
sam.FavoritePrimaryColor = "Red";
WriteLine($"Sam's favorite primary color is {sam.FavoritePrimaryColor}.");
sam.Children.Add(new Person {
Name = "Charlie"
});
sam.Children.Add(new Person {
Name = "Ella"
});
WriteLine($"Sam's first child is {sam.Children[0].Name}");
WriteLine($"Sam's second child is {sam.Children[1].Name}");
WriteLine($"Sam's first child is {sam[0].Name}");
WriteLine($"Sam's second child is {sam[1].Name}");
}
static void Main(string[] args)
{
var p1 = new Person();
p1.Name = "Bob Smith";
p1.DateOfBirth = new System.DateTime(1965, 12, 22);
WriteLine($"{p1.Name} was born on {p1.DateOfBirth:dddd, d MMMM yyyy}");
var p2 = new Person
{
Name = "Alice Jones",
DateOfBirth = new DateTime(1998, 3, 17)
};
WriteLine($"{p2.Name} was born on {p2.DateOfBirth:d MMM yy}");
p1.BucketList = WondersOfTheAncientWorld.HangingGardenOfBabylon |
WondersOfTheAncientWorld.MausoleumAtHalicarnassus;
// p1.BucketList = (WondersOfTheAncientWorld)18;
WriteLine($"{p1.Name}'s bucket list is {p1.BucketList}");
p1.Children.Add(new Person {
Name = "Alfred"
});
p1.Children.Add(new Person {
Name = "Zoe"
});
WriteLine(
$"{p1.Name} has {p1.Children.Count} children:"
);
for (int child = 0; child < p1.Children.Count; child++)
{
WriteLine($" {p1.Children[child].Name}");
}
BankAccount.InterestRate = 0.012M;
var ba1 = new BankAccount();
ba1.AccountName = "Mrs. Jones";
ba1.Balance = 2400;
WriteLine($"{ba1.AccountName} earned {ba1.Balance * BankAccount.InterestRate:C} interest.");
var ba2 = new BankAccount();
ba2.AccountName = "Ms. Gerrier";
ba2.Balance = 98;
WriteLine($"{ba2.AccountName} earned {ba2.Balance * BankAccount.InterestRate:C} interest.");
WriteLine($"{p1.Name} is a {Person.Species}");
// WriteLine($"{p1.Name} is a {p1.Species}");
WriteLine($"{p1.Name} was born on {p1.HomePlanet}");
var p3 = new Person();
WriteLine($"{p3.Name} was instantiated at {p3.Instantiated:hh:mm:ss} on {p3.Instantiated:dddd, d MMMM yyyy}");
var p4 = new Person("Aziz");
WriteLine($"{p4.Name} was instantiated at {p4.Instantiated:hh:mm:ss} on {p4.Instantiated:dddd, d MMMM yyyy}");
p1.WriteToConsole();
WriteLine(p1.GetOrigin());
Tuple <string, int> fruit4 = p1.GetFruitCS4();
WriteLine($"There are {fruit4.Item2} {fruit4.Item1}.");
(string, int)fruit7 = p1.GetFruitCS7();
WriteLine($"{fruit7.Item1}, {fruit7.Item2} there are.");
var fruitNamed = p1.GetNamedFruit();
WriteLine($"Are there {fruitNamed.Number} {fruitNamed.Name}?");
var thing1 = ("Neville", 4);
WriteLine(
$"{thing1.Item1} has {thing1.Item2} children."
);
var thing2 = (p1.Name, p1.Children.Count);
WriteLine(
$"{thing2.Name} has {thing2.Count} children."
);
(string fruitName, int fruitNumber) = p1.GetFruitCS7();
WriteLine($"Deconstructed: {fruitName}, {fruitNumber}");
WriteLine(p1.SayHello());
WriteLine(p1.SayHello("Emily"));
WriteLine(p1.OptionalParameters());
WriteLine(p1.OptionalParameters("Jump!", 98.5));
WriteLine(p1.OptionalParameters(number: 52.7, command: "Hide!"));
WriteLine(p1.OptionalParameters("Poke!", active: false));
int a = 10;
int b = 20;
int c = 30;
WriteLine($"Before: a = {a}, b = {b}, c = {c}");
p1.PassingParameters(a, ref b, out c);
WriteLine($"After: a = {a}, b = {b}, c = {c}");
// simplified C# 7 syntax for out parameters
int d = 10;
int e = 20;
WriteLine($"Before: d = {d}, e = {e}, f doesn't exist yet!");
p1.PassingParameters(d, ref e, out int f);
WriteLine($"After: d = {d}, e = {e}, f = {f}");
var sam = new Person
{
Name = "Sam",
DateOfBirth = new DateTime(1972, 1, 27)
};
WriteLine(sam.Origin);
WriteLine(sam.Greeting);
WriteLine(sam.Age);
sam.FavoriteIceCream = "Chocolate Fudge";
WriteLine($"Sam's favorite ice-cream flavor is {sam.FavoriteIceCream}.");
sam.FavoritePrimaryColor = "Red";
WriteLine($"Sam's favorite primary color is {sam.FavoritePrimaryColor}.");
sam.Children.Add(new Person {
Name = "Charlie"
});
sam.Children.Add(new Person {
Name = "Ella"
});
WriteLine($"Sam's first child is {sam.Children[0].Name}");
WriteLine($"Sam's second child is {sam.Children[1].Name}");
WriteLine($"Sam's first child is {sam[0].Name}");
WriteLine($"Sam's second child is {sam[1].Name}");
var harry = new Person {
Name = "Harry"
};
var mary = new Person {
Name = "Mary"
};
var jill = new Person {
Name = "Jill"
};
// call instance method
var baby1 = mary.ProcreateWith(harry);
// call static method
var baby2 = Person.Procreate(harry, jill);
// call an operator
var baby3 = harry * mary;
WriteLine($"{mary.Name} has {mary.Children.Count} children.");
WriteLine($"{harry.Name} has {harry.Children.Count} children.");
WriteLine($"{jill.Name} has {jill.Children.Count} children.");
WriteLine($"{mary.Name}'s first child is named \"{mary.Children[0].Name}\".");
WriteLine($"5! is {Person.Factorial(5)}");
harry.Shout += Harry_Shout;
harry.Poke();
harry.Poke();
harry.Poke();
harry.Poke();
Person[] people =
{
new Person {
Name = "Simon"
},
new Person {
Name = "Jenny"
},
new Person {
Name = "Adam"
},
new Person {
Name = "Richard"
}
};
WriteLine("Initial list of people:");
foreach (var person in people)
{
WriteLine($"{person.Name}");
}
WriteLine("Use Person's IComparable implementation to sort:");
Array.Sort(people);
foreach (var person in people)
{
WriteLine($"{person.Name}");
}
WriteLine("use PersonComparer's IComparer implementation to sort:");
Array.Sort(people, new PersonComparer());
foreach (var person in people)
{
WriteLine($"{person.Name}");
}
var t = new Thing();
t.Data = 42;
WriteLine($"Thing: {t.Process("42")}");
var gt = new GenericThing <int>();
gt.Data = 42;
WriteLine($"GenericThing: {gt.Process("42")}");
string number1 = "4";
WriteLine($"{number1} squared is {Squarer.Square<string>(number1)}");
byte number2 = 3;
WriteLine($"{number2} squared is {Squarer.Square<byte>(number2)}");
var dv1 = new DisplacementVector(3, 5);
var dv2 = new DisplacementVector(-2, 7);
var dv3 = dv1 + dv2;
WriteLine($"({dv1.X}, {dv1.Y}) + ({dv2.X}, {dv2.Y}) = ({dv3.X}, {dv3.Y})");
Employee e1 = new Employee
{
Name = "John Jones",
DateOfBirth = new DateTime(1990, 7, 28)
};
e1.WriteToConsole();
e1.EmployeeCode = "JJ001";
e1.HireDate = new DateTime(2014, 11, 23);
WriteLine($"{e1.Name} was hired on {e1.HireDate:dd/MM/yy}");
WriteLine(e1.ToString());
Employee aliceInEmployee = new Employee {
Name = "Alice", EmployeeCode = "AA123"
};
Person aliceInPerson = aliceInEmployee;
aliceInEmployee.WriteToConsole();
aliceInPerson.WriteToConsole();
WriteLine(aliceInEmployee.ToString());
WriteLine(aliceInPerson.ToString());
if (aliceInPerson is Employee)
{
WriteLine($"{nameof(aliceInPerson)} IS an Employee");
Employee e2 = (Employee)aliceInPerson;
// do something with e2
}
Employee e3 = aliceInPerson as Employee;
if (e3 != null)
{
WriteLine($"{nameof(aliceInPerson)} AS an Employee");
// do something with e3
}
try
{
e1.TimeTravel(new DateTime(1999, 12, 31));
e1.TimeTravel(new DateTime(1950, 12, 25));
}
catch (PersonException ex)
{
WriteLine(ex.Message);
}
string email1 = "*****@*****.**";
string email2 = "ian&test.com";
WriteLine($"{email1} is a valid e-mail address: {email1.isValidEmail()}.");
WriteLine($"{email2} is a valid e-mail address: {email2.isValidEmail()}.");
}
static void Main(string[] args)
{
var p1 = new Person("");
p1.Name = "Bob Smith";
p1.DateOfBirth = new System.DateTime(1954, 12, 22);
p1.FavouriteAncientWonder = WondersOfTheAncientWorld.StatueOfZeusAtOlympia;
WriteLine($"{p1.Name} was born on {p1.DateOfBirth:dddd, d MMMM yyyy}. And favourite wonder is {p1.FavouriteAncientWonder}");
WriteLine(p1.ToString());
p1.BucketList = WondersOfTheAncientWorld.HangingGardensOfBabylon |
WondersOfTheAncientWorld.MausoleumAtHalicarnassus;
// p1.BucketList = (WondersOfTheAncientWorld)18;
WriteLine($"{p1.Name}'s bucket list is {p1.BucketList}");
//TODO это возов конструктора такой через {}?
p1.Children.Add(new Person("")
{
Name = "Alfred"
});
p1.Children.Add(new Person("")
{
Name = "Zoe"
});
WriteLine(
$"{p1.Name} has {p1.Children.Count} children:");
for (int child = 0; child < p1.Children.Count; child++)
{
WriteLine($" {p1.Children[child].Name}");
}
WriteLine($"{p1.Name} was instantiated at {p1.Instantiated:hh:mm:ss} on {p1.Instantiated:dddd, d MMMM yyyy}");
/* ****BankAccount**** */
BankAccount.InterestRate = 0.012M;
var ba1 = new BankAccount();
ba1.AccountName = "Mrs. Jones";
ba1.Balance = 2400;
WriteLine($"{ba1.AccountName} earned {ba1.Balance * BankAccount.InterestRate:C} interest.");
var ba2 = new BankAccount();
ba2.AccountName = "Ms. Gerrier";
ba2.Balance = 98;
WriteLine($"{ba2.AccountName} earned {ba2.Balance * BankAccount.InterestRate:C} interest.");
WriteLine($"{p1.Name} is a {Person.Species}");
WriteLine($"{p1.Name} was born on {p1.HomePlanet}");
/* TUPLES */
Tuple <string, int> fruit = p1.GetFruitCS4();
WriteLine($"There are {fruit.Item2} {fruit.Item1}.");
(string, int)fruit7 = p1.GetFruitCS7();
WriteLine($"{fruit7.Item1}, {fruit7.Item2} there are.");
/* TUPLE DESTRUCTURING */
var thing1 = ("Neville", 4);
(string name, int childNum) = thing1;
WriteLine(
$"{thing1.Item1} has {thing1.Item2} children.");
WriteLine($"Deconstructed {name} and his {childNum} children");
/* Optional Named Parameters */
WriteLine(p1.OptionalParameters(number: 52.7, command: "Hide!"));
/* Управление передачей параметров */
//TODO ref, out
int a = 10;
int b = 20;
int c = 30;
WriteLine($"Before: a = {a}, b = {b}, c = {c}");
// p1.PassingParameters(a, ref b, out c);
// System.Int32.TryParse("23", out int result);
WriteLine($"After: a = {a}, b = {b}, c = {c}");
/* OBJECT DUMPER */
ObjectHelper.Dump(p1);
/* Свойства только для чтения*/
//TODO а какже readonly?
var sam = new Person("")
{
Name = "Sam",
DateOfBirth = new DateTime(1972, 1, 27)
};
//TODO данные свойства внутри выполнряются как функции?
WriteLine(sam.Origin);
WriteLine(sam.Greeting);
WriteLine(sam.Age);
// Lambda Expressions
Func <int, int, int> adder = (m, n) => m + n;
//TODO Print out object properties.
ObjectHelper.Dump(sam);
// Computed properties
sam.FavoriteIceCream = "Chocolate Fudge";
WriteLine($"Sam's favorite ice-cream flavor is {sam.FavoriteIceCream}.");
sam.FavoritePrimaryColor = "Red";
WriteLine($"Sam's favorite primary color is {sam.FavoritePrimaryColor}.");
//ИНДЕКСАТОР
sam.Children.Add(new Person("")
{
Name = "Charlie"
});
sam.Children.Add(new Person("")
{
Name = "Ella"
});
WriteLine($"Sam's first child is {sam.Children[0].Name}");
WriteLine($"Sam's second child is {sam.Children[1].Name}");
WriteLine($"Sam's first child is {sam[0].Name}");
WriteLine($"Sam's second child is {sam[1].Name}");
}
static void Main(string [] args)
{
var p1 = new Person();
p1.Name = "Bob Smith";
p1.DateOfBirth = new System.DateTime(1965, 12, 22);
p1.BucketList = WondersOfTheAncientWorld.HangingGardensOfBabylon |
WondersOfTheAncientWorld.TempleOfArtemisAtEphesus;
//WriteLine ( $"{p1.Name} was born on {p1.DateOfBirth: dddd, d MMMM yyyy}" );
WriteLine($"{p1.Name}'s favourite wonder is {p1.BucketList}");
WriteLine($"{p1.Name} is a {Person.Species}.");
//WriteLine($"{p1.Name} was born on {p1.HomePlanet}");
p1.WriteToConsole();
WriteLine(p1.GetOrigin());
WriteLine(p1.SayHello());
WriteLine(p1.SayHello("Emily"));
WriteLine(p1.OptionalParameters("Jump!", 98.5));
p1.Children.Add(new Person {
Name = "Alfred"
});
p1.Children.Add(new Person {
Name = "Zoe"
});
WriteLine($"{p1.Name} has {p1.Children.Count} children:");
// for ( int child = 0; child < p1.Children.Count; child++ )
// {
// WriteLine($" {p1.Children[child].Name}");
// }
foreach (var child in p1.Children)
{
WriteLine($" {child.Name}");
}
BankAccount.InterestRate = 0.012M;
var ba1 = new BankAccount();
ba1.AccountName = "Mrs. Jones";
ba1.Balance = 2400;
WriteLine($"{ba1.AccountName} earned {ba1.Balance * BankAccount.InterestRate:C} interest.");
var ba2 = new BankAccount();
ba2.AccountName = "Ms. Gerrier";
ba2.Balance = 98;
WriteLine($"{ba2.AccountName} earned {ba2.Balance * BankAccount.InterestRate:C} interest.");
var p3 = new Person();
WriteLine($"{p3.Name} was instantiated at {p3.Instantiated:h:mm:ss tt zz} on {p3.Instantiated:D}");
var p4 = new Person("Aziz");
WriteLine($"{p4.Name} was instantiated at {p4.Instantiated:h:mm:ss tt} on {p4.Instantiated:D}");
// Tuples
WriteLine("\nUsing Tuples...");
Tuple <string, int> fruit4 = p1.GetFruitCS4();
WriteLine($"There are {fruit4.Item1} {fruit4.Item2}.");
// (string, int) fruit7 = p1.GetFruitCS7 ();
// WriteLine($"{fruit7.Name}, {fruit7.Number} there are.");
var fruitNamed = p1.GetNamedFruit();
WriteLine($"Are there {fruitNamed.Number} {fruitNamed.Name}?");
// Tuple name inference
WriteLine("\nUsing Tuple name inferencing...");
var thing1 = ("Neville", 4);
WriteLine($"{thing1.Item1} has {thing1.Item2} children.");
var thing2 = (p1.Name, p1.Children.Count);
WriteLine($"{thing2.Name} has {thing2.Count} children.");
// Deconstructing a Tuple for its individual values.
WriteLine("\nDeconstructing a tuple...");
(string fruitName, int fruitNumber) = p1.GetFruitCS7();
WriteLine($"Deconstructed: {fruitName}, {fruitNumber}");
// Passing parameters into functions
int a = 10;
int b = 20;
int c = 30;
WriteLine($"Before: a = {a}, b = {b}, c = {c}");
p1.PassingParameters(a, ref b, out c);
WriteLine($"After: a = {a}, b = {b}, c = {c}");
int d = 10;
int e = 20;
WriteLine($"Before: d = {d}, e = {e}, f doesn't exist yet!");
p1.PassingParameters(d, ref e, out int f);
WriteLine($"After: d = {d}, e = {e}, f = {f}");
var sam = new Person
{
Name = "Sam",
DateOfBirth = new DateTime(1972, 1, 27)
};
WriteLine(sam.Origin);
WriteLine(sam.Greeting);
WriteLine(sam.Age);
sam.FavouriteIceCream = "Chocolate Fudge";
WriteLine($"Sam's favourite ice-cream flavor is {sam.FavouriteIceCream}.");
sam.FavouritePrimaryColor = "Red";
WriteLine($"Sam's favourite primary color is {sam.FavouritePrimaryColor}.");
sam.Children.Add(new Person {
Name = "Charlie"
});
sam.Children.Add(new Person {
Name = "Ella"
});
WriteLine($"Sam's first child is {sam.Children [ 0 ].Name}");
WriteLine($"Sam's second child is {sam.Children [ 1 ].Name}");
WriteLine($"Sam's first child is {sam [ 0 ].Name}");
WriteLine($"Sam's second child is {sam [ 1 ].Name}");
}
static void Main(string[] args)
{
// var person1 = new Person();
// person1.Name = "Juliani";
// person1.DateOfBirth = new System.DateTime(1995, 12, 12);
// person1.FavoriteAncientWonder = WondersOfTheAncientWorld.StatueOfZeusAtOlympia;
// person1.BucketList = WondersOfTheAncientWorld.HangingGardensOfBabylon |WondersOfTheAncientWorld.MausoleumAtHalicarnassus;
// WriteLine($"{person1.Name} was born on {person1.DateOfBirth :dddd, d MMMM yyyy} and {person1.Name}'s favorite wonder is {person1.FavoriteAncientWonder}");
// // p1.BucketList = (WondersOfTheAncientWorld)18;
// WriteLine($"{person1.Name}'s bucket list is {person1.BucketList}");
var person2 = new Person {
Name = "Janete",
DateOfBirth = new DateTime(1977, 8, 19)
};
WriteLine($"{person2.Name} was born on {person2.DateOfBirth :d MMM yy} and is a {Person.Species} from {person2.HomePlanet}");
person2.Children.Add(new Person {
Name = "Juliani"
});
person2.Children.Add(new Person {
Name = "Julia"
});
WriteLine(
$"{person2.Name} has {person2.Children.Count} children:");
for (int child = 0; child < person2.Children.Count; child++)
{
WriteLine($" {person2.Children[child].Name}");
}
BankAccount.InterestRate = 0.012M;
var ba1 = new BankAccount();
ba1.AccountName = "Mrs. Jones";
ba1.Balance = 2400;
WriteLine($"{ba1.AccountName} earned {ba1.Balance * BankAccount.InterestRate:C} interest.");
var ba2 = new BankAccount();
ba2.AccountName = "Ms. Gerrier";
ba2.Balance = 98;
WriteLine($"{ba2.AccountName} earned {ba2.Balance * BankAccount.InterestRate:C} interest.");
var p3 = new Person();
WriteLine($"{p3.Name} was instantiated at {p3.Instantiated:hh:mm:ss} on {p3.Instantiated:dddd, d MMMM yyyy}");
var p4 = new Person("Aziz");
WriteLine($"{p4.Name} was instantiated at {p4.Instantiated:hh:mm:ss} on {p4.Instantiated:dddd, d MMMM yyyy}");
p4.WriteToConsole();
WriteLine(p4.GetOrigin());
Tuple <string, int> fruit4 = p4.GetFruitCS4();
WriteLine($"There are {fruit4.Item2} {fruit4.Item1}.");
(string, int)fruit7 = p4.GetFruitCS7();
WriteLine($"{fruit7.Item1}, {fruit7.Item2} there are.");
var fruitNamed = p4.GetNamedFruit();
WriteLine($"Are there {fruitNamed.Number} {fruitNamed.Name}?");
var thing1 = ("Neville", 4);
WriteLine($"{thing1.Item1} has {thing1.Item2} children.");
var thing2 = (person2.Name, person2.Children.Count);
WriteLine($"{thing2.Item1} has {thing2.Item2} children.");
(string fruitName, int fruitNumber) = person2.GetFruitCS7();
WriteLine($"Deconstructed: {fruitName}, {fruitNumber}");
WriteLine(person2.SayHello());
WriteLine(person2.SayHelloTo("Emily"));
int a = 10;
int b = 20;
int c = 30;
WriteLine($"Before: a = {a}, b = {b}, c = {c}");
person2.PassingParameters(a, ref b, out c);
WriteLine($"After: a = {a}, b = {b}, c = {c}");
// simplified C# 7 syntax for out parameters
int d = 10;
int e = 20;
WriteLine($"Before: d = {d}, e = {e}, f doesn't exist yet!");
person2.PassingParameters(d, ref e, out int f);
WriteLine($"After: d = {d}, e = {e}, f = {f}");
var sam = new Person
{
Name = "Sam",
DateOfBirth = new DateTime(1972, 1, 27)
};
WriteLine(sam.Origin);
WriteLine(sam.Greeting);
WriteLine(sam.Age);
}
static void Chapter05()
{
var p1 = new Person();
p1.Name = "Bob Smith";
p1.DateOfBirth = new DateTime(1965, 12, 22);
WriteLine($"{p1.Name} was born on {p1.DateOfBirth:dddd, d MMMM yyyy}");
var p2 = new Person()
{
Name = "Alice Jones",
DateOfBirth = new DateTime(1998, 3, 17)
};
WriteLine($"{p2.Name} was born on {p2.DateOfBirth:d MMM yy}");
// without flags - one only
p1.FavouriteAncientWonder = WondersOfTheAncientWorld.StatueOfZeusAtOlympia;
WriteLine($"{p1.Name}'s favourite wonder is {p1.FavouriteAncientWonder}");
// p1.BucketList = WondersOfTheAncientWorld.HangingGardensOfBabylon |
// WondersOfTheAncientWorld.MausoleumAtHalicarnassus;
p1.BucketList = (WondersOfTheAncientWorld)18;
WriteLine($"{p1.Name}'s bucket list is {p1.BucketList}");
// Add people to chlidren list
p1.Children.Add(new Person("Alfred"));
p1.Children.Add(new Person("Zoe"));
WriteLine($"{p1.Name} has {p1.Children.Count} children:");
for (int child = 0; child < p1.Children.Count; child++)
{
WriteLine($" {p1.Children[child].Name}");
}
BankAccount.InterestRate = 0.012M;
var ba1 = new BankAccount();
ba1.AccountName = "Mrs. Jones";
ba1.Balance = 2400;
WriteLine($"{ba1.AccountName} earned {ba1.Balance * BankAccount.InterestRate:C} Interest.");
var ba2 = new BankAccount {
AccountName = "Ms. Gerrier",
Balance = 98
};
WriteLine($"{ba2.AccountName} earned {ba2.Balance * BankAccount.InterestRate:C} Interest.");
WriteLine($"{p1.Name} is a {Person.Species}");
var p3 = new Person();
WriteLine($"{p3.Name} was instantiated at {p3.Instantiated:hh:mm:ss} on {p3.Instantiated:dddd, d MMMM yyyy}");
var p4 = new Person("Aziz");
WriteLine($"{p4.Name} was instantiated at {p4.Instantiated:hh:mm:ss} on {p4.Instantiated:dddd, d MMMM yyyy}");
p1.WriteToConsole();
WriteLine(p1.GetOrigin());
Tuple <string, int> fruit4 = p1.GetFruitCS4();
WriteLine($"There are {fruit4.Item2} {fruit4.Item1}.");
(string, int)fruit7 = p1.GetFruitCS7();
WriteLine($"{fruit7.Item1}, {fruit7.Item2} there are.");
var fruitNamed = p1.GetNamedFruit();
WriteLine($"Are there {fruitNamed.Number} {fruitNamed.Name}?");
// Inferring tuple names
var thing1 = ("Neville", 4);
WriteLine($"{thing1.Item1} has {thing1.Item2} children");
var thing2 = (p1.Name, p1.Children.Count);
WriteLine($"{thing2.Name} has {thing2.Count} children");
// YOu can deconstruct Tuples
(string fruitName, int fruitNumber) = p1.GetFruitCS7();
WriteLine($"Deconstructed: {fruitName}, {fruitNumber}");
// say hello
WriteLine(p1.SayHello());
WriteLine(p1.SayHello("Emily"));
// optional parameters
WriteLine(p1.OptionalParameters());
// pass parameters in order
WriteLine(p1.OptionalParameters("Jump!", 98.5));
// use named parameters to negate requirement for order
WriteLine(p1.OptionalParameters(number: 52.7, command: "Hide!"));
// skip paramters using named arguments
WriteLine(p1.OptionalParameters(command: "Poke!", active: false));
// passing parameters
int a = 10;
int b = 20;
// value a is recreated in method and not returned.
// reference to b is passed - which is why it can change
// c is created in the method and so anything passed in is lost.
WriteLine($"Before: a = {a}, b = {b}, c isn't created yet!");
p1.PassingParameters(a, ref b, out int c);
WriteLine($"Before: a = {a}, b = {b}, c = {c}");
// Using partial Person class
var sam = new Person
{
Name = "Sam",
DateOfBirth = new DateTime(1972, 1, 27)
};
WriteLine(sam.Origin);
WriteLine(sam.Greeting);
WriteLine(sam.Age);
// using getters and setters
sam.FavouriteIceCream = "Chocolate Fudge";
WriteLine($"Sam's favourite ice-cream flavour is {sam.FavouriteIceCream}.");
sam.FavouritePrimaryColor = "Red";
WriteLine($"Sam's favourite primary color is {sam.FavouritePrimaryColor}.");
try
{
sam.FavouritePrimaryColor = "Yellow";
WriteLine($"Sam's favourite primary color is {sam.FavouritePrimaryColor}.");
}
catch (Exception ex)
{
WriteLine($"{ex.GetType()}: {ex.Message}");
}
}
static void Main(string[] args)
{
var p1 = new Person
{
Name = "Bob Smith",
DateOfBirth = new System.DateTime(1965, 12, 22),
BucketList = WondersOfTheAncientWorld.StatueOfZeusAtOlympia
};
WriteLine($"{p1.Name} was born on {p1.DateOfBirth:dddd, d MMMM yyyy}");
WriteLine($"{p1.Name}'s favurite wonder is {p1.BucketList}");
p1.BucketList = WondersOfTheAncientWorld.HangingGardensOfBabylon |
WondersOfTheAncientWorld.MausoleumAtHalicarnassus;
//p1.BucketList = (WondersOfTheAncientWorld)18;
WriteLine($"{p1.Name}'s bucket list is {p1.BucketList}");
p1.Children.Add(new Person {
Name = "Alfred"
});
p1.Children.Add(new Person {
Name = "Zoe"
});
WriteLine($"{p1.Name} has {p1.Children.Count} children:");
for (int child = 0; child < p1.Children.Count; child++)
{
WriteLine($"{p1.Children[child].Name}");
}
WriteLine($"{p1.Name} is {Person.Species}");
WriteLine($"{p1.Name} was born on {p1.HomePlanet}");
var p2 = new Person
{
Name = "Alice Jones",
DateOfBirth = new DateTime(1998, 3, 17)
};
WriteLine($"{p2.Name} was born on {p2.DateOfBirth:d MMM yy}");
WriteLine(new string('-', 50));
var p3 = new Person();
WriteLine($"{p3.Name} was instantiated at {p3.Instantiated:hh:mm:ss} on " +
$"{p3.Instantiated:dddd, d MMMM yyyy}");
var p4 = new Person("Aziz");
WriteLine($"{p4.Name} was instantiated at {p4.Instantiated:hh:mm:ss} on " +
$"{p4.Instantiated:dddd, d MMMM yyyy}");
WriteLine(new string('-', 50));
p1.WriteToConsole();
WriteLine(p1.GetOrigin());
WriteLine(new string('-', 50));
BankAccount.InterestRate = 0.012M;
var ba1 = new BankAccount
{
AccountName = "Mrs. Jones",
Balance = 2400
};
WriteLine($"{ba1.AccountName} earned {ba1.Balance * BankAccount.InterestRate:C} interest");
var ba2 = new BankAccount
{
AccountName = "Ms.Gerrier",
Balance = 98
};
WriteLine($"{ba2.AccountName} earned {ba2.Balance * BankAccount.InterestRate:C} interest");
WriteLine(new string('-', 50));
// Tuples
Tuple <string, int> fruit4 = p1.GetFruitCS4();
WriteLine($"There are {fruit4.Item2} {fruit4.Item1}");
(string, int)fruit7 = p1.GetFruitCS7();
WriteLine($"{fruit7.Item1}, {fruit7.Item2} there are");
var fruitNamed = p1.GetNamedFruit();
WriteLine($"Are there {fruitNamed.Number} {fruitNamed.Name}?");
WriteLine(new string('-', 50));
var thing1 = ("Neville", 4);
WriteLine(
$"{thing1.Item1} has {thing1.Item2} children");
var thing2 = (p1.Name, p1.Children.Count);
WriteLine(
$"{thing2.Name} has {thing2.Count} children");
WriteLine(new string('-', 50));
WriteLine(p1.SayHello());
WriteLine(p1.SayHello("Emily"));
WriteLine(new string('-', 50));
WriteLine(p1.OptionalParameters());
WriteLine(p1.OptionalParameters("Jump!", 98.5));
WriteLine(p1.OptionalParameters(number: 52.7, command: "Hide!"));
WriteLine(new string('-', 50));
int a = 10, b = 20, c = 30;
WriteLine($"Before : a = {a}, b = {b}, c = {c}");
p1.PassingParametrs(a, ref b, out c);
WriteLine($"After : a = {a}, b = {b}, c = {c}");
// simplify out parameters syntax in C# 7
int d = 10;
int e = 20;
WriteLine($"Before : d = {d}, e = {e}, f doesn't exist yet");
p1.PassingParametrs(d, ref e, out int f);
WriteLine($"Before : d = {d}, e = {e}, f = {f}");
WriteLine(new string('-', 50));
var Sam = new Person
{
Name = "Sam",
DateOfBirth = new DateTime(1972, 1, 27)
};
WriteLine(Sam.Origin);
WriteLine(Sam.Greeting);
Write(Sam.Age);
Sam.FavoriteIceCream = "Chocolate Fudge";
WriteLine($"Sam's favorite ice-cream flavor is {Sam.FavoriteIceCream}.");
Sam.FavoritePrimaryColor = "Red";
WriteLine($"Sam's favorite primary color is {Sam.FavoritePrimaryColor}.");
WriteLine(new string('-', 50));
Sam.Children.Add(new Person {
Name = "Charlie"
});
Sam.Children.Add(new Person {
Name = "Ella"
});
WriteLine($"Sam's first child is {Sam.Children[0].Name}");
WriteLine($"Sam's swcond child is {Sam.Children[1].Name}");
WriteLine($"Sam's first child is {Sam[0].Name}");
WriteLine($"Sam's second child is {Sam[1].Name}");
}