using System;

​

​

[Flags]

public enum Days

{

    None      = 0b_0000_0000,  // 0

    Monday    = 0b_0000_0001,  // 1

    Tuesday   = 0b_0000_0010,  // 2

    Wednesday = 0b_0000_0100,  // 4

    Thursday  = 0b_0000_1000,  // 8

    Friday    = 0b_0001_0000,  // 16

    Saturday  = 0b_0010_0000,  // 32

    Sunday    = 0b_0100_0000,  // 64

    Weekend   = Saturday | Sunday

}

​

public enum Season

{

    Spring,

    Summer,

    Autumn,

    Winter

}

​

public struct Coords

{

    public int x, y;

​

    public Coords(int p1, int p2)

    {

        x = p1;

        y = p2;

    }

}

​

public class Program

{

    public static void Main()

    {

        int exercise = 1;

        Console.WriteLine($"*************************** EXERCISE {exercise++} *****************************");

        //Integer

        int a = 18, b = 6, c = 0;

        Console.WriteLine((c = a + b));

        Console.WriteLine($"*************************** EXERCISE {exercise++} *****************************");

        //Double

        double ab = 1.0, bc = 3.0;

        Console.WriteLine(ab / bc);

        double radius = 2.50, area = Math.PI * radius * radius;

        Console.WriteLine(area);

        Console.WriteLine($"*************************** EXERCISE {exercise++} *****************************");

        //Operaciones

        int a1 = 5, b1 = 4, c1 = 2;

        int d1 = (a1 + b1) * c1;

        Console.WriteLine(d1);

        int a2 = 7, b2 = 4, c2 = 3;

        int d2 = (a2 + b2) / c2;

        int e2 = (a2 + b2) % c2;

        Console.WriteLine($"quotient: {d2}");

        Console.WriteLine($"remainder: {e2}");

        //Maximo y minimo valor entero

        Console.WriteLine($"*************************** EXERCISE {exercise++} *****************************");

        int max = int.MaxValue;

        int min = int.MinValue;

        Console.WriteLine($"The range of integers is {min} to {max}");

        Console.WriteLine($"*************************** EXERCISE {exercise++} *****************************");

        // Desborder

        //int what = max + 3;

        //Console.WriteLine($"An example of overflow: {what}");

        Console.WriteLine($"*************************** EXERCISE {exercise++} *****************************");

        //Double precision

        double a3 = 5;

        double b3 = 4;

        double c3 = 2;

        double d3 = (a3 + b3) / c3;

        Console.WriteLine(d3);

        Console.WriteLine($"*************************** EXERCISE {exercise++} *****************************");

        double third = 1.0 / 3.0;

        Console.WriteLine(third);

        Console.WriteLine($"*************************** EXERCISE {exercise++} *****************************");

        //Conversiones numéricas integradas

        //integer byte

        //byte a = 13;

        //byte b = 300;  // CS0031: Constant value '300' cannot be converted to a 'byte'

        Console.WriteLine($"*************************** EXERCISE {exercise++} *****************************");

        //Boolean

        bool check = true;

        Console.WriteLine(check ? "Checked" : "Not checked");  // output: Checked

        Console.WriteLine(false ? "Checked" : "Not checked");  // output: Not checked

        Console.WriteLine($"*************************** EXERCISE {exercise++} *****************************");

        //char

        var chars = new[]

        {

            'j',

            '\u006A',

            '\x006A',

            (char)106,

        };

        Console.WriteLine(string.Join(" ", chars));  // output: j j j j

        //Tipos de enumeración

        // enum Days

        Console.WriteLine($"*************************** EXERCISE {exercise++} *****************************");

        Days meetingDays = Days.Monday | Days.Wednesday | Days.Friday;

        Console.WriteLine(meetingDays);

        // Output:

        // Monday, Wednesday, Friday

​

        Days workingFromHomeDays = Days.Thursday | Days.Friday;

        Console.WriteLine($"Join a meeting by phone on {meetingDays & workingFromHomeDays}");

        // Output:

        // Join a meeting by phone on Friday

​

        bool isMeetingOnTuesday = (meetingDays & Days.Tuesday) == Days.Tuesday;

        Console.WriteLine($"Is there a meeting on Tuesday: {isMeetingOnTuesday}");

        // Output:

        // Is there a meeting on Tuesday: False

​

        var a5 = (Days)37;

        Console.WriteLine(a5);

        // Output:

        // Monday, Wednesday, Saturday

        Console.WriteLine($"*************************** EXERCISE {exercise++} *****************************");

        // enum season

           Season a6 = Season.Autumn;

        Console.WriteLine($"Integral value of {a6} is {(int)a6}");  // output: Integral value of Autumn is 2

​

        var b6 = (Season)1;

        Console.WriteLine(b6);  // output: Summer

​

        var c6 = (Season)4;

        Console.WriteLine(c6);  // output: 4

        Console.WriteLine($"*************************** EXERCISE STRUCTS {exercise++} *****************************");

        //Los structs no admiten la herencia, pero pueden implementar interfaces. Para más información, vea Interfaces.

        var coords1 = new Coords();

        var coords2 = new Coords(10, 10);

​

        // Display results.

        Console.Write("Coords 1: ");

        Console.WriteLine($"x = {coords1.x}, y = {coords1.y}");

​

        Console.Write("Coords 2: ");

        Console.WriteLine($"x = {coords2.x}, y = {coords2.y}");

​

        // Keep the console window open in debug mode.

        Console.WriteLine("Press any key to exit.");

        //Console.ReadKey();

        Console.WriteLine($"*************************** EXERCISE {exercise++} *****************************");

​

        Console.WriteLine($"*************************** EXERCISE {exercise++} *****************************");

​

        Console.WriteLine($"*************************** EXERCISE {exercise++} *****************************");

​

        Console.WriteLine($"*************************** EXERCISE {exercise++} *****************************");

​

        Console.WriteLine($"*************************** EXERCISE {exercise++} *****************************");

​

        Console.WriteLine($"*************************** EXERCISE {exercise++} *****************************");

​

        Console.WriteLine($"*************************** EXERCISE {exercise++} *****************************");  

    }

}