using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

​

public class Program

{

    public static void Main(string[] args)

    {

        char[] letters = "the quick brown fox jumps over the lazy dog".ToCharArray();

        int[] numbers = {0, 2, 3, 5, 7, 1, 1, 2, 5, 6, 7, 2, 5, 2};

        string[] poem = "mary had a little lamb its fleece was white as snow".Split(); 

        //Questions 1-3

        PrintCharArray(letters);

        PrintIntegerArray(numbers);

        PrintPoemArray(poem);

        /*4.    In your main method use the method in question 1 to display the letters array, then use the Array.Reverse() method to reverse the letters array and then again call the appropriate method to print it*/

        PrintCharArray(letters);

        Array.Reverse(letters);

        PrintCharArray(letters);

        /*5.    In your main method use the method in question 3 to display the poem array, then use the Array.Sort() method to sort the poem array and then again call the appropriate method to print it*/

        PrintPoemArray(poem);

        Array.Sort(poem);

        PrintPoemArray(poem);

        /*6.    In your main method use the method in question 2 to display the numbers array, then use the Array.Binarysearch() method to try to find the position of 3 in the numbers array. What is your answer?

                Now repeat the same steps after you have sorted the array and printed the sorted array

                */

        PrintIntegerArray(numbers);

        Console.WriteLine("{Array.BinarySearch(numbers, 3)}");

        Array.Sort(numbers);

        PrintIntegerArray(numbers);

        Console.WriteLine("{Array.BinarySearch(numbers, 3)}");

        /*Question 7*/

        int[] array = CreateIntegerArray(10);

        PrintIntegerArray(array);

        /*Question 8*/

        int[] array_2 = CreateIntegerArray(10);

        PrintIntegerArray(array_2);

        Console.Write("Press Enter to terminate: ");

        Console.ReadLine();

    }

    /*1.    Write a method that takes an argument (a char array) and print each item on a single line separated by a space. From your main, call this method with letters as argument

    */

    public static void PrintCharArray(char[] array)

    {

        for (int i = 0; i < array.Length; i++){

            Console.Write("{array[i]} ");

        }

        Console.WriteLine();

    }

    /*2.    Write a method that takes an argument (an int array) and print each item on a single line separated by a space. From your main, call this method with numbers as argument*/

    public static void PrintIntegerArray(int[] array)

    {

        for (int i = 0; i < array.Length; i++)

        {

            Console.Write("{array[i]} ");

        }

        Console.WriteLine();

    }

    /*3.    Write a method that takes an argument (a string array) and print each item on a single line separated by a space. From your main, call this method with poem as argument*/

    public static void PrintPoemArray(string[] poem)

    {

        for (int i = 0; i < poem.Length; i++)

        {

            Console.Write("{poem[i]} ");

        }

        Console.WriteLine();

    }

    /*7.    Write a method that creates and return an array of ints. The method takes a single argument that represents the number of items in the resulting array and does the following:

            •   Declare an array of the required type

            •   Allocate memory for the intended number of items

            •   Using any looping structure, prompt the user for a number and then assign to each element. 

            In your main method do the following: (1) call this method (you will need to supply an argument), assign the resulting value to at suitable variable and then (2) display this variable.

​

    */

    public static int[] CreateIntegerArray(int size)

    {

        int[] array = new int[size];

        for (int i = 0; i < size; i++)

        {

            Console.Write("Please enter a number: ");

            array[i] = Convert.ToInt32(Console.ReadLine());

        }

        return array;

    }

    /*8.    Write another method that creates and return an array of ints. The method takes a single argument that represents the number of items in the resulting array and does the following:

            •   Declare an array of the required type

            •   Allocate memory for the intended number of items

            •   Using any looping structure, assign to each element a random integer in the range 100 to 200. 

            You will need the following statement in global scope.

            static Random rand = new Random();

            The following statement will give you a random letter

            rand.Next(100, 200);

            Exercise this method in a similar fashion as you did for question 7

​

    */

    public static int[] intCreateAnotherArray(int size)

    {

        Random rand = new Random();

        int[] array = new int[size];

        for (int i = 0; i < size; i++)

        {

            array[i] = rand.Next(100,200);

        }

        return array;

    }

    }