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Use the Convert.ToInt32() method to convert a specified value to a 32-bit signed integer.Let us take a double variable.double doubleNum = 11.53;Now, we will convert it to Int32 using the Convert.ToInt32 method.int intNum; ntNum = Convert.ToInt32(doubleNum);Example Live Demousing System; public class Demo {    public static void Main() {       double doubleNum = 11.53;       int intNum;       intNum = Convert.ToInt32(doubleNum);       Console.WriteLine("Converted {0} to {1}", doubleNum, intNum);    } }OutputConverted 11.53 to 12

To return a collection with repeated elements in C#, use Enumerable.Repeat method.It is part of System.Linq namespace.Let’s say you need to repeat a number twice, for that set the number and the frequency of repetition.Enumerable.Repeat(50, 2);Now assign it to a variable and display it.Example Live Demousing System; using System.Linq; class Demo {    static void Main() {       // repeating element 50, two times       var num = Enumerable.Repeat(50, 2);       // displayig repeating elements       foreach (int ele in num) {          Console.WriteLine(ele);       }    } }Output50 50

Set a string.char[] ch = { 'd', 'r', 'i', 'v', 'e' }; Console.Write("String = foreach(char arr in ch) Console.Write(arr);Now, use Queryable Reverse() method to invert the order of elements.IQueryable res = ch.AsQueryable().Reverse();Let us see the complete code.Example Live Demousing System; using System.Linq; using System.Collections.Generic; public class Demo {    public static void Main() {       char[] ch = { 'd', 'r', 'i', 'v', 'e' };       Console.Write("String = ");       foreach(char arr in ch)       Console.Write(arr);       IQueryable res = ch.AsQueryable().Reverse();       Console.Write("Reversed = ");       foreach (char c in res)       Console.Write(c);    } }OutputString = drive Reversed = evird

Firstly, set a string array.string [] students = {"Tim","Jack","Henry","David","Tom"};Now, add it to the LinkedList.LinkedList list = new LinkedList(students);The above creates a LinkedList and adds node to it.Let us see the complete example.Example Live Demousing System; using System.Collections.Generic; class Demo {    static void Main() {       string [] students = {"Tim","Jack","Henry","David","Tom"};       LinkedList list = new LinkedList(students);       foreach (var stu in list) {          Console.WriteLine(stu);       }    } }OutputTim Jack Henry David Tom

Let’s add two sequences.Integer Array.int[] intArray = { 1, 2, 3, 4, 5, 6, 7, 8 };String Array.string[] stringArray = { "Depp", "Cruise", "Pitt", "Clooney", "Sandler", "Affleck", "Tarantino" };Now to merge both the above sequences, use the Zip method.ntArray.AsQueryable().Zip(stringArray, (one, two) => one + " " + two);Let us see the complete code.Example Live Demousing System; using System.Linq; using System.Collections.Generic; public class Demo {    public static void Main() {       int[] intArray = { 1, 2, 3, 4, 5, 6, 7, 8 };       string[] stringArray = { "Depp", "Cruise", "Pitt", "Clooney", "Sandler", "Affleck", "Tarantino"   ... Read More

Like any other programming languages such as C, C++, Java, we can easily display start pattern programs in C#.Let us see them one by one.Example Live Demousing System.IO; using System; class Program {    static void Main() {       for (int i = 1; i

The Convert.ToDateTime method converts a given value to a DateTime value.The following is my string.string myDateString; myDateString = "09/09/2018";Now, let us convert it using the Convert.ToDateTime() method.DateTime result; result = Convert.ToDateTime(myDateString);Here is the complete example.Example Live Demousing System; public class Demo {    public static void Main() {       string myDateString;       DateTime result;       myDateString = "09/09/2018";       result = Convert.ToDateTime(myDateString);       Console.WriteLine("'{0}' converted to {1}", myDateString, result);    } }Output'09/09/2018' converted to 9/9/2018 12:00:00 AM

The Convert.ToChar method is used to convert a specified value to a Unicode integer.We have declared an sbyte variable.sbyte byteVal = 200;Now, use the Convert.ToChar() method to convert the sbyte value to a Unicode integer.charVal = Convert.ToChar(b);Let us see another example.Example Live Demousing System; public class Demo {    public static void Main() {       sbyte[] byteVal = { 92, 111, 115 };       char charVal;       foreach (sbyte b in byteVal) {          charVal = Convert.ToChar(b);          Console.WriteLine("{0} converted to '{1}'", b, charVal);       }    } }Output92 converted to '\' 111 converted to 'o' 115 converted to 's'

TimeSpan Seconds() is part of time, whereas TimeSpan TotalSeconds() converts entire time to seconds.Let us first see the TimeSpan Seconds() method.Example Live Demousing System; using System.Linq; public class Demo {    public static void Main() {       TimeSpan ts = new TimeSpan(0, 100, 0, 20, 0);       // seconds       Console.WriteLine(ts.Seconds);    } }Output20Now, let us see how TotalSeconds works for the same TimeSpan value.Example Live Demousing System; using System.Linq; public class Demo {    public static void Main() {       TimeSpan ts = new TimeSpan(0, 100, 0, 20, 0);       // ... Read More

We have a list without any element.List val = new List { };To display the default and avoid any error, use the FirstorDefault() method.val.AsQueryable().FirstOrDefault();You can also change the value to be displayed as default.Let us see the code.Example Live Demousing System; using System.Collections.Generic; using System.Linq; class Demo {    static void Main() {       List val = new List{ };       float a = val.AsQueryable().FirstOrDefault();       Console.WriteLine("Default Value = "+a);       if (a == 0.0f) {          a = 0.1f;       }       Console.WriteLine("Default Float value updated = "+a);    } }OutputDefault Value = 0 Default Float value updated = 0.1