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Found 34494 Articles for Programming
![Arjun Thakur](https://www.tutorialspoint.com/assets/profiles/13574/profile/60_74441-1560315595.jpg)
582 Views
In a Linked List, if you want to add a node at the first position, use AddFirst method.Let’s first set a LinkedList.string [] students = {"Jenifer", "Angelina", "Vera"}; LinkedList list = new LinkedList(students);Now, to add an element as a first node, use AddFirst() method.List.AddFirst(“Natalie”);Example Live Demousing System; using System.Collections.Generic; class Demo { static void Main() { string [] students = {"Jenifer", "Angelina", "Vera"}; LinkedList list = new LinkedList(students); foreach (var stu in list) { Console.WriteLine(stu); } // add a node ... Read More
![karthikeya Boyini](https://www.tutorialspoint.com/assets/profiles/13518/profile/60_31598-1537784993.jpg)
5K+ Views
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
![Chandu yadav](https://www.tutorialspoint.com/assets/profiles/22330/profile/60_142811-1519038104.jpg)
234 Views
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
![Samual Sam](https://www.tutorialspoint.com/assets/profiles/13514/profile/60_83486-1512649303.jpg)
137 Views
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
![Arjun Thakur](https://www.tutorialspoint.com/assets/profiles/13574/profile/60_74441-1560315595.jpg)
218 Views
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
![karthikeya Boyini](https://www.tutorialspoint.com/assets/profiles/13518/profile/60_31598-1537784993.jpg)
156 Views
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
![Samual Sam](https://www.tutorialspoint.com/assets/profiles/13514/profile/60_83486-1512649303.jpg)
720 Views
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
![Chandu yadav](https://www.tutorialspoint.com/assets/profiles/22330/profile/60_142811-1519038104.jpg)
926 Views
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'
![karthikeya Boyini](https://www.tutorialspoint.com/assets/profiles/13518/profile/60_31598-1537784993.jpg)
3K+ Views
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