Read individual bytes using GetByte() method in C# −Set an array −int[] arr = { 3, 4, 12 };Now, use Buffer.GetByte() to display the array elements and to read individual bytes −for (int i = 0; i < Buffer.ByteLength(arr); i++) {    Console.WriteLine(Buffer.GetByte(arr, i)); }The following is the code −Example Live Demousing System; using System.Text; public class Demo {    public static void Main() {       int[] arr = { 3, 4, 12 };       // loop through the byte array       for (int i = 0; i < Buffer.ByteLength(arr); i++) {          Console.WriteLine(Buffer.GetByte(arr, i));       }    } }Output3 0 0 0 4 0 0 0 12 0 0 0

Set a byte array −byte[] b = { 5, 9, 19, 23, 29, 35, 55, 78 };To count number of bytes −Buffer.ByteLength(b)The following is the code −Example Live Demousing System; class Program {    static void Main() {       byte[] b = { 5, 9, 19, 23, 29, 35, 55, 78 };       int len = Buffer.ByteLength(b);       for (int i = 0; i < len; i++) {          Console.WriteLine(b[i]);       }       Console.WriteLine("Length of byte array = "+len);    } }Output5 9 19 23 29 35 55 78 Length of byte array = 8

To replace a C# aray with a new array, use the Array.Resize.Withing that, set the size of the new array −Array.Resize(ref arr, 4);Now add the new elements to the array as shown below −Example Live Demousing System; class Program {    static void Main() {       char[] arr = new char[5];       arr[0] = 'J';       arr[1] = 'A';       Array.Resize(ref arr, 4);       // Set value for new elements       arr[2] = 'C';       arr[3] = 'K';       Console.WriteLine("Updated Array : "+ new string(arr));    } }OutputUpdated Array : JACK

It copies the bytes from one byte array to another byte array.Example Live Demousing System; class Demo {    static void Main() {       // byte arrays       byte[] b1 = new byte[] {55, 66, 77, 88, 99};       byte[] b2 = new byte[8];       // copying bytes from one to another       Buffer.BlockCopy(b1, 0, b2, 0, 5);       /* calling the method with the byte array b2 that has the copied elements */       bufferFunc(b2);    }    static void bufferFunc(byte[] a) {       for (int j = 0; j < a.Length; j++) {          Console.Write(a[j]);       }       Console.WriteLine();    } }Output5566778899000

To handle range of bytes, use Buffer Type in C#. Its method Buffer.BlockCopy copies the bytes from one byte array to another byte array.Example Live Demousing System; class Demo {    static void Main() {       // byte arrays       byte[] b1 = new byte[] {39, 45, 58 };       byte[] b2 = new byte[5];       // copying bytes from one to another       Buffer.BlockCopy(b1, 0, b2, 0, 3);       /* calling the method with the byte array b2 that has the copied elements */       bufferFunc(b2);    }    static void bufferFunc(byte[] a) {       for (int j = 0; j < a.Length; j++) {          Console.Write(a[j]);       }       Console.WriteLine();    } }Output39455800

You cannot resize an array in C#, but using Array.Resize you can replace the array with a new array of different size.The following is our array −char[] ch = new char[10]; ch[0] = 'a'; ch[1] = 'b';Now, resize −Array.Resize(ref ch, 10);The following is the complete example −Example Live Demousing System; class Program {    static void Main() {       char[] ch = new char[10];       ch[0] = 'a';       ch[1] = 'b';       // Resize array       Array.Resize(ref ch, 10);       // Set value for new elements     ... Read More

Firstly, declare and initialize two arrays −int[] arr1 = { 37, 45, 65 }; int[] arr2 = { 70, 89, 118 };Now create a new list −var myList = new List(); myList.AddRange(arr1); myList.AddRange(arr2);Use the AddRange() method the arrays into the newly created list.myList.AddRange(arr1); myList.AddRange(arr2);Now convert the list into array as shown below −Example Live Demousing System; using System.Collections.Generic; class Demo {    static void Main() {       int[] arr1 = { 37, 45, 65 };       int[] arr2 = { 70, 89, 118 };       // displaying array1       Console.WriteLine("Array 1...");     ... Read More

NullReferenceException occurs when you try to to access member fields, or function types that points to null.Here is an example −Example Live Demousing System; class Demo {    static void Main() {       string str = null;       if (str.Length > 0) {          Console.WriteLine(str);       }    } }OutputThe following is the output. It throws NullReferenceException, since you are tryonhg access a memebt that points to null −Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object at Demo.Main () [0x00002] in :0 [ERROR] FATAL UNHANDLED EXCEPTION: System.NullReferenceException: Object reference not set to an instance of an object at Demo.Main () [0x00002] in :0

It gets an array of the names of constants in an enumeration. The following is the syntax −Enum.GetNames(Type)Here, Type is an enumeration type.The following is an example −Example Live Demousing System; class Demo {    enum Vehicle {       Car,       Motorbike,       Truck,    };    static void Main() {       // display the enum       foreach ( string res in Enum.GetNames ( typeof (Vehicle)))       Console.WriteLine (res);    } }OutputCar Motorbike Truck

Gets the string representation of an Enum value using the Enum.GetName.It has two parameters −Type − Enumeration typeObject − Value of an enumerationThe following is an example −Example Live Demousing System; class Demo {    enum Vehicle {       Car,       Motorbike,       Truck,       Bicycles    };    static void Main() {       // Usig GetName to get the string representation of enum type       string res = Enum.GetName(typeof(Vehicle), Vehicle.Motorbike);           // Displaying       Console.WriteLine(res);    } }OutputMotorbike