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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
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 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
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
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
Create a string array −string[] str = new string[] { "Videos", "Tutorials", "Tools", "InterviewQA" };Loop until the length of the array −for (int i = 0; i < str.Length; i++) { string res = str[i]; Console.WriteLine(res); }Here is the complete code −Example Live Demousing System; public class Demo { public static void Main() { string[] str = new string[] { "Videos", "Tutorials", "Tools", "InterviewQA" }; Console.WriteLine("String Array..."); for (int i = 0; i < str.Length; i++) { string res = str[i]; Console.WriteLine(res); } } }OutputString Array... Videos Tutorials Tools InterviewQA
To illustrate this we are fetching all the records from a table named ‘Tutorials_tbl’ with the help of PHP script that uses mysql_query() and mysql_fetch_array() function in the following example −
To illustrate the making of MySQL view with subquery we are using the following data from the table ‘Cars’ −mysql> select * from cars; +------+--------------+---------+ | ID | Name | Price | +------+--------------+---------+ | 1 | Nexa | 750000 | | 2 | Maruti Swift | 450000 | | 3 | BMW | 4450000 | | 4 | VOLVO | 2250000 | | 5 | Alto | 250000 | | 6 | Skoda ... Read More
To create an empty string array −string[] str = new string[] {};Above, we haven’t added elements to the array, since it is empty.Even if we will loop though the array, it won’t display anything as shown below −Example Live Demousing System; public class Demo { public static void Main() { string[] str = new string[] {}; Console.WriteLine("String Array elements won't get displayed since it's empty..."); for (int i = 0; i < str.Length; i++) { string res = str[i]; Console.WriteLine(res); } } }OutputString Array elements won't get displayed since it's empty...
Declare and initialize an array −string[] str = new string[] { "Cat", "Mat", "Rat" };Now, ue IndexOf() method to find the index of the word “Mat” −Array.IndexOf(str, "Mat");The following is the code −Example Live Demousing System; public class Demo { public static void Main() { string[] str = new string[] { "Cat", "Mat", "Rat" }; Console.WriteLine("Our Array ="); for (int i = 0; i < str.Length; i++) { string res = str[i]; Console.WriteLine(res); } int findIndex = Array.IndexOf(str, "Mat"); Console.Write("Element Mat found at the following index: "); Console.WriteLine(findIndex); } }OutputOur Array = Cat Mat Rat Element Mat found at the following index: 1