using System;

public class Program

{

    /* array is collection of similar datatypes based on index we can store nd retrive data

    differnece between array and array list in 

    array length must defined 

    arrar contains similar datatypes

    and some keywords not in array like  contains(),copy(),clear()

    to store different data types in array we can use object[] array/dynamic [] array

    */

    public static void Main()

    {

        int [] array=new int[]{11,2,23,14,5};

        foreach(int i in array)

        {

            Console.WriteLine(i);

        }

        //1

        Console.WriteLine("\n o th element in array is: {0}",array[0]);

        //2

        Array.Sort(array);

        Console.WriteLine("\n sorted array");

        foreach(int i in array)

        {

            Console.WriteLine(i);

        }

        //3

        Array.Reverse(array);

        Console.WriteLine("\n Reverse array");

        foreach(int i in array)

        {

            Console.WriteLine(i);

        }

        //array.CopyTo()

        Array.Clear(array,0,2); //array ,start index ,length in this case output is 0 0 11 5 2 (as previous op is 23 14 11 5 2 )

        string [] sarray=new string[]{"value1","value2","value3","value4","value5"};

        foreach(string s  in sarray)

        {

            Console.WriteLine(s);

        }

        //Multi dimensional array

        int[,] multi=new int[3,2]{{0,1},{2,3},{4,5}};

        Console.WriteLine("0,0 value of array {0} , 0,1 value of array {1}",multi[0,0],multi[0,1]);

        //jagged array:A jagged array is an array of an array

        //A jagged array is initialized with two square brackets [][]. The first bracket specifies the size ofjagged array 

        //and the second bracket specifies the dimension of the array

        int[][] intJaggedArray = new int[2][];

        intJaggedArray[0]=new int[3]{1,2,3};

        Console.WriteLine("jagged array 0,0 value is {0}",intJaggedArray[0][0]);

​

    }

}