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Csharp Articles
Page 98 of 196
Buffer GetByte Example in C#
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 −Exampleusing 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
Read MoreMerge two arrays using C# AddRange() method
Firstly, set two arrays −int[] arr1 = { 15, 20, 27, 56 }; int[] arr2 = { 62, 69, 76, 92 };Now create a new list and use AddRange() method to merge −var myList = new List(); myList.AddRange(arr1); myList.AddRange(arr2);After that, convert the merged collection to an array −int[] arr3 = myList.ToArray()Let us see the complete codeExampleusing System; using System.Collections.Generic; class Demo { static void Main() { int[] arr1 = { 15, 20, 27, 56 }; int[] arr2 = { 62, 69, 76, 92 }; // displaying array1 ...
Read MoreC# program to copy a range of bytes from one array to another
Use the Buffer.BlockCopy method to copy a range of bytes from one array to another −Set a byte array −byte[] b1 = new byte[] {22, 49}; byte[] b2 = new byte[5];Copy bytes from one array to another −Buffer.BlockCopy(b1, 0, b2, 0, 2);The following is the complete code −Exampleusing System; class Demo { static void Main(){ // byte arrays byte[] b1 = new byte[] {22, 49}; byte[] b2 = new byte[5]; // copying bytes from one to another Buffer.BlockCopy(b1, 0, b2, 0, 2); ...
Read MoreC# Program to convert integer array to string array
Use the ConvertAll method to convert integer array to string array.Set an integer array −int[] intArray = new int[5]; // Integer array with 5 elements intArray[0] = 15; intArray[1] = 30; intArray[2] = 44; intArray[3] = 50; intArray[4] = 66;Now use Array.ConvertAll() method to convert integer array to string array −Array.ConvertAll(intArray, ele => ele.ToString());Let us see the complete code −Exampleusing System; using System.Text; public class Demo { public static void Main() { int[] intArray = new int[5]; // Integer array with 5 elements intArray[0] = 15; intArray[1] = 30; intArray[2] = 44; intArray[3] = 50; intArray[4] = 66; string[] strArray = Array.ConvertAll(intArray, ele => ele.ToString()); Console.WriteLine(string.Join("|", strArray)); } }Output15|30|44|50|66
Read MoreC# program to check if a value is in an array
Use the Array.Exists method to check if a value is in an array or not.Set a string array −string[] strArray = new string[] {"keyboard", "screen", "mouse", "charger" };Let’s say you need to find the value “keyboard” in the array. For that, use Array.Exists() −Array.Exists(strArray, ele => ele == "keyboard");It returns a true value if element exists as shown below −Exampleusing System; using System.Text; public class Demo { public static void Main() { string[] strArray = new string[] {"keyboard", "screen", "mouse", "charger" }; bool res1 = Array.Exists(strArray, ele => ele == "harddisk"); ...
Read MoreClear a list in C#
Firstly, set a list −List myList = new List(); myList.Add(45); myList.Add(77);Now, to clear the above list, use Clear() −myList.Clear();Here is the complete code −Exampleusing System; using System.Collections.Generic; public class Demo { public static void Main() { List myList = new List(); myList.Add(45); myList.Add(77); Console.WriteLine("Elements: "+myList.Count); myList.Clear(); Console.WriteLine("Elements after using clear: "+myList.Count); } }OutputElements: 2 Elements after using clear: 0
Read MoreC# program to create a List with elements from an array
Set an array −int[] val = new int[5]; // integer elements val[0] = 15; val[1] = 25; val[2] = 40; val[3] = 58; val[4] = 70;Now set a list and add array in it −List myList = new List(val);The following is the code −Exampleusing System; using System.Collections.Generic; public class Demo { public static void Main() { int[] val = new int[5]; // integer elements val[0] = 15; val[1] = 25; val[2] = 40; val[3] = 58; val[4] = 70; List myList = new List(val); Console.WriteLine("Elements..."); foreach(int res in myList) { Console.WriteLine(res); } // count integer elements Console.WriteLine("Number of elements: "+myList.Count); } }OutputElements... 15 25 40 58 70 Number of elements: 5
Read MoreC# program to find the index of an element in a List
Set a list and add elements −List val = new List(); // integer elements val.Add(35); val.Add(55); val.Add(68);Let’s say now we need to find the index of element 68. For that, use the IndexOf() method −int index = val.IndexOf(68);Here is the complete code −Exampleusing System; using System.Collections.Generic; public class Demo { public static void Main() { List val = new List(); // integer elements val.Add(35); val.Add(55); val.Add(68); // finding the index of element 68 int index = val.IndexOf(68); Console.WriteLine(index); } }Output2
Read MoreC# Program to find the smallest element from an array using Lambda Expressions
Declare an array −int[] arr = { 10, 15, 5, 20};Now to get the smallest element from an array, use Min() method with lambda expressions −arr.Min());Here is the complete code −Exampleusing System; using System.Linq; class Demo { static void Main() { int[] arr = { 10, 15, 5, 20}; Console.WriteLine(arr.Min(element => Math.Abs(element))); } }Output5
Read MoreC# program to get the List of keys from a Dictionary
Set the dictionary elements −Dictionary d = new Dictionary(); // dictionary elements d.Add(1, "One"); d.Add(2, "Two"); d.Add(3, "Three"); d.Add(4, "Four"); d.Add(5, "Five"); d.Add(6, "Six"); d.Add(7, "Seven"); d.Add(8, "Eight");To get the keys, use a list collection −List keys = new List(d.Keys);Loop through the keys and display them.Here is the complete code −Exampleusing System; using System.Collections.Generic; public class Demo { public static void Main() { Dictionary d = new Dictionary(); // dictionary elements d.Add(1, "One"); d.Add(2, "Two"); d.Add(3, "Three"); d.Add(4, "Four"); ...
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