زنگ سی شارپ – قسمت نوزدهم

C#

int[,] twoDimensionalArary = new int[3,4];

C#

using System;
class Example
{
    static void Main()
    {
        int[,] twoDimensionalArray = new int[3,4];

        // First row
        twoDimensionalArray[0, 0] = 1;
        twoDimensionalArray[0, 1] = 2;
        twoDimensionalArray[0, 2] = 3;
        twoDimensionalArray[0, 3] = 4;

        // Second row
        twoDimensionalArray[1, 0] = 5;
        twoDimensionalArray[1, 1] = 6;
        twoDimensionalArray[1, 2] = 7;
        twoDimensionalArray[1, 3] = 8;

  
        // Third row
        twoDimensionalArray[2, 0] = 9;
        twoDimensionalArray[2, 1] = 10;
        twoDimensionalArray[2, 2] = 11;
        twoDimensionalArray[2, 3] = 12;

        // Displaying Array's data
        for (int i = 0; i < 3; i++)
        {
            for (int j = 0; j < 4; j++)
            {
                Console.Write(twoDimensionalArray[i, j] + "\t");
            }
            Console.WriteLine();
        }
    }
}

C#

type[ , ... , ] multiDimensionalArray = new type[size1, size2, ... , sizeN];

C#

int[, ,] threeDimensionalArray = new int[3, 4, 10];

C#

threeDimensionalArray[2, 4, 1] = 100;

C#

using System;
class Example
{
    static void Main()
    {
        int[, ,] threeDimensionalArray = new int[3, 3, 3];

        int result = 1;
        int sum;

        for (int x = 0; x < 3; x++)
        for (int y = 0; y < 3; y++)
        for (int z = 0; z < 0; z++)
        threeDimensionalArray[x, y, z] = result++;

        sum = threeDimensionalArray[0, 0, 0] +
        threeDimensionalArray[1, 1, 1] +
        threeDimensionalArray[2, 2, 2];

        Console.WriteLine("Summation of first diagonal is " + sum);
    }
}

C#

type[,] array_name = {
    { val, val, val, ..., val },
    { val, val, val, ..., val },
                            .
                            .
                            .
    { val, val, val, ..., val }
};

C#

using System;
class Example
{
    static void Main()
    {
        int[,] myTwoDimArray = {
            { 1, 0, 1, 1 },
            { 0, 0, 1, 0 },
            { 1, 1, 1, 0 },
            { 0, 1, 0, 1 }
        };




        for (int i = 0; i < 4; i++)
        {
            for (int j = 0; j < 4; j++)
            {
                Console.Write(myTwoDimArray[i, j] + "\t");
            }
            Console.WriteLine();
        }
    }
}

C#

type[][] array-name = new type[size][ ];

C#

int[][] jaggedArray = new int[3][];

jaggedArray[0] = new int[4];
jaggedArray[1] = new int[3];
jaggedArray[2] = new int[5];

C#

using System;
class Example
{
    static void Main()
    {
        int[][] jaggedArray = new int[3][];

        jaggedArray[0] = new int[4];
        jaggedArray[1] = new int[3];
        jaggedArray[2] = new int[5];

        int i;

        // Store values in first row (first array)
        for (i = 0; i < 4; i++)
        {
            jaggedArray[0][i] = i;
        }

        // Store values in second row (second array)
        for (i = 0; i < 3; i++)
        {
            jaggedArray[1][i] = i;
        }

        // Store values in third row (third array)
        for (i = 0; i < 5; i++)
        {
            jaggedArray[2][i] = i;
        }
    }
}

C#

double[][] tickets = {
    new double[] {5.50, 6.75, 7.95, 9.00, 12.00,
                                        13.00, 14.50, 17.00, 19.00, 20.25},
    new double[] {5.00, 6.00},
    new double[] {7.50, 9.00, 9.95, 12.00, 13.00, 14.00},
    new double[] {3.50, 6.45, 9.95, 10.00, 12.75},
    new double[] {15.00, 16.00}
};

C#

int[][,] twoDimJaggedArray = new int[3][,];

twoDimJaggedArray[0] = new int[4,2];
twoDimJaggedArray[1] = new int[3, 2];
twoDimJaggedArray[2] = new int[5,3];

C#

twoDimJaggedArray[0][2, 1] = 5;

C#

int x;

C#

var e = 2.6080;

C#

var e = 2.6080F;

C#

var name = "Roxy"; // has the same meaning as string name = "Roxy";
var age = 30; // has the same meaning as int age = 30;

C#

var vals = new[] { 1, 2, 3, 4, 5 };

C#

var vals = new[,] { { 1.1, 2.2 }, { 3.3, 4.4 }, { 5.5, 6.6 } };

C#

var jaggedArray = new[] {
    new[] { 1, 2, 3, 4 },
    new[] { 9, 8, 7 },
    new[] { 11, 12, 13, 14 ,15 }
};

C#

foreach (type item in collection) statement;

C#

using System;
class Example
{
    static void Main()
    {
        int[] anArray = { 2, 33, 56, 42, 13, 15, 79 };
        
        foreach (int loopvar in anArray)
        {
            Console.Write(loopvar + " ");
        }
        Console.WriteLine();
    }
}

C#

using System;
class SimplePhonebook
{
    static void Main()
    {
        // Setting Cursor Size
        Console.CursorSize = 100;

        int arraySize = 5;
        string[] names = new string[arraySize];
        string[] numbers = new string[arraySize];

        // A string array for storing main menu strings
        string[] menu = {
            "╔════════════ Phonebook Software ════════════╗",
            "║                                            ║",
            "║ 1. Add Contact                             ║",
            "║ 2. Search by Name and Number               ║",
            "║ 3. View All                                ║",
            "║ 4. Exit                                    ║",
            "║                                            ║",
            "╚════════════════════════════════════════════╝"
        };

        while (true)
        {
            Console.Clear();
            // Setting console font color
            Console.ForegroundColor = ConsoleColor.Cyan;

            // Displaying main menu
            for (int i = 0; i < menu.Length; i++)
            {
                Console.Write(menu[i] + "\n");
            }
            Console.WriteLine("╔════════════════════════════════════════════╗");
            Console.WriteLine("║ You have to pick out a number              ║");
            Console.WriteLine("╚════════════════════════════════════════════╝");
            Console.WriteLine("----------------------------------------------");
            Console.WriteLine("Enter your choice: ");
            Console.Write("> ");

            // Getting user entry for a service
            string userChoice = Console.ReadLine();
            switch (userChoice)
            {
                // Adding a contact
                case "1":
                Console.Clear();
                Console.WriteLine("Enter Name: ");
                Console.Write("> ");
                string name = Console.ReadLine();
                Console.WriteLine("Enter Number: ");
                Console.Write("> ");
                string number = Console.ReadLine();

                // testing for empty part of arrays
                for (int i = 0; i < arraySize; i++)
                {
                    if (names[i] == null && numbers[i] == null)
                    {
                        numbers[i] = number;
                        names[i] = name;
                        Console.ForegroundColor = ConsoleColor.Green;
                        Console.Write("> Your contact added successfully!");
                        break;
                    }
                }
                break;

                // Searching by contact name or number
                case "2":
                Console.Clear();
                Console.WriteLine("Enter a Name or a Number: ");
                Console.Write("> ");

                bool found = false;
                string inputForSearch = Console.ReadLine(); ;

                for (int i = 0; i < arraySize; i++)
                {
                    if (inputForSearch == names[i] || inputForSearch == numbers[i])
                    {
                        found = true;

                        Console.WriteLine();
                        Console.ForegroundColor = ConsoleColor.Green;
                        Console.WriteLine("> Founded!");
                        Console.WriteLine();
                        Console.ForegroundColor = ConsoleColor.Cyan;
                        Console.WriteLine("║  Name: " + names[i]);
                        Console.WriteLine("║  Number: " + numbers[i]);
                        Console.WriteLine();
                        Console.WriteLine("1. Edit      2. Delete      3. Cancel");

                        // editing, deleting or canceling
                        while (true)
                        {
                            Console.Write("> ");
                            string inputForEdit = Console.ReadLine();
                            if (inputForEdit == "1")
                            {
                                Console.WriteLine();
                                Console.WriteLine("Enter new Name: ");
                                Console.Write("> ");
                                names[i] = Console.ReadLine();
                                Console.WriteLine("Enter new Number: ");
                                Console.Write("> ");
                                numbers[i] = Console.ReadLine();
                                Console.ForegroundColor = ConsoleColor.Green;
                                Console.WriteLine("> the contact " +
                                " changed successfully!");
                                break;
                            }
                            else if (inputForEdit == "2")
                            {
                                Console.WriteLine();
                                Console.WriteLine("You sure you wanna " +
                                " delete this contact? (enter yes or no)");
                                while (true)
                                {
                                    Console.Write("> ");
                                    inputForEdit = Console.ReadLine();
                                    if (inputForEdit == "yes")
                                    {
                                        names[i] = numbers[i] = null;
                                        Console.ForegroundColor = ConsoleColor.Green;
                                        Console.WriteLine("> The contact " +
                                        " deletet successfully!");
                                        break;
                                    }
                                    else if (inputForEdit == "no")
                                    {
                                        break;
                                    }
                                    else
                                    {
                                        Console.ForegroundColor = ConsoleColor.Red;
                                        Console.WriteLine("> Invalid Input!" +
                                        " Enter yes or no");
                                        Console.ForegroundColor = ConsoleColor.Cyan;
                                        continue;
                                    }
                                }
                                break;
                            }
                            else if (inputForEdit == "3")
                            {
                                break;
                            }
                            else
                            {
                                Console.WriteLine();
                                Console.ForegroundColor = ConsoleColor.Red;
                                Console.WriteLine("> Invalid Input!");
                                Console.WriteLine("> You have to enter" +
                                " a number between 1 and 3");
                                Console.WriteLine();
                                Console.ForegroundColor = ConsoleColor.Cyan;
                                continue;
                            }
                        }
                    }
                }

                if (!found)
                {
                    Console.ForegroundColor = ConsoleColor.Red;
                    Console.WriteLine("> Not Found!");
                }
                break;

                // Showing all contacts
                case "3":
                Console.Clear();
                for (int i = 0; i < arraySize; i++)
                {
                    if (names[i] == null && numbers[i] == null)
                    {
                        Console.WriteLine("contact {0} is empty!", i + 1);
                        Console.WriteLine("----------------------");
                    }
                    else
                    {
                        Console.WriteLine("Name: " + names[i]);
                        Console.WriteLine("Number: " + numbers[i]);
                        Console.WriteLine("----------------------");
                    }
                }
                break;

                // Exit from the program
                case "4":
                Console.ForegroundColor = ConsoleColor.Yellow;
                Console.WriteLine();
                Console.WriteLine("Thank you for using our software! Bye");
                Environment.Exit(0);
                break;
                default:
                Console.ForegroundColor = ConsoleColor.Red;
                Console.Write("> Fail, Invalid Input!");
                break;
            }
            Console.ReadLine();
        }
    }
}