- Trending Categories
- Data Structure
- Networking
- RDBMS
- Operating System
- Java
- MS Excel
- iOS
- HTML
- CSS
- Android
- Python
- C Programming
- C++
- C#
- MongoDB
- MySQL
- Javascript
- PHP
- Physics
- Chemistry
- Biology
- Mathematics
- English
- Economics
- Psychology
- Social Studies
- Fashion Studies
- Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Found 2628 Articles for Csharp
2K+ Views
To display a line in C#, use the Console.WriteLine().Under that set a blank line −Console.WriteLine(" ");The following is the code that displays a blank line −Example Live Demousing System; namespace Program { public class Demo { public static void Main(String[] args) { Console.WriteLine(" "); Console.WriteLine("Displayed a blank line above!"); Console.ReadLine(); } } }OutputDisplayed a blank line above!
75 Views
To find the difference between two dates in C#, you need to first set two dates to be compared using the DateTime object. We will use the DateTime class in C#.Date 1DateTime date1 = new DateTime(2018, 09, 15); Console.WriteLine("Date 1 : {0}", date1);Date 2DateTime date2 = new DateTime(2018, 09, 28); Console.WriteLine("Date 2 : {0}", date2);Now let us compare both the dates in C#. The following is an example to compare dates in C#.Example Live Demousing System; namespace Program { class Demo { static int Main() { DateTime date1 = new DateTime(2018, 09, 15); ... Read More
202 Views
Set the stringstring s = "Tom Cruise";Now let’s say you need to find the substring “Tom”, then use the Contains() method.if (s.Contains("Tom") == true) { Console.WriteLine("Substring found!"); }The following is the code to learn how to find a substring from a string −Example Live Demousing System; public class Demo { public static void Main() { string s = "Tom Cruise"; if (s.Contains("Tom") == true) { Console.WriteLine("Substring found!"); } else { Console.WriteLine("Substring not found!"); } } }OutputSubstring found!
4K+ Views
Firstly, set the string to be replaced.string str = "Demo text!";Now use the replace() method to replace the above string.string res = str.Replace("Demo ", "New ");The following is the complete code to replace a word in a string.Example Live Demousing System; public class Demo { public static void Main() { string str = "Demo text!"; Console.WriteLine(str); string res = str.Replace("Demo ", "New "); Console.WriteLine("After replacing..."); Console.WriteLine(res); } }OutputDemo text! After replacing... New text!
269 Views
To find a number in a string, use Regular Expressions.We have set the Regex pattern to get number from a string.Regex r = new Regex(@"\d+");Now, use Match class in C# to set the string.Match m = r.Match("Welcome! We are open 365 days in a year!");Use the Success property now to display the result if number is found in the string as shown in the following complete code −Example Live Demousing System; using System.Text.RegularExpressions; class Demo { static void Main() { Regex r = new Regex(@"\d+"); Match m = r.Match("Welcome! We are open ... Read More
338 Views
Firstly, set the first two numbers −double val1, val2; val1 = 10; val2 = 5;Now use the Math.Sqrt function to use Pythagoras Theorem.res = Math.Sqrt(val1 * val1 + val2 * val2);Example Live Demousing System; public class Program { public static void Main(string[] args) { double val1, val2, res; val1 = 10; val2 = 5; res = Math.Sqrt(val1 * val1 + val2 * val2); Console.WriteLine("Result = {0}", res); Console.ReadLine(); } }OutputResult = 11.1803398874989
878 Views
Firstly, set a list with empty string as elements.List myList = new List() { " ", " ", " " };Now let us remove one empty element using index.myList.RemoveAt(0);Example Live Demousing System; using System.Collections.Generic; using System.Linq; class Program { static void Main() { List myList = new List() { " ", " ", " " }; Console.Write("Initial list with empty strings..."); foreach (string list in myList) { ... Read More
274 Views
Firstly, set a a new ArrayList and add elements to it.ArrayList arr = new ArrayList(); arr.Add( "Jones" ); arr.Add( "Tom" ); arr.Add( "Henry" );Now let’s remove the item “Tom”. For that, use the Remove() method.arr.Remove("Tom");The following is the complete example to remove an element from ArrayList −Example Live Demousing System; using System.Collections; class Demo { static void Main(){ ArrayList arr = new ArrayList(); arr.Add( "Jones" ); arr.Add( "Tom" ); arr.Add( "Henry" ); Console.WriteLine("Initial ArrayList..."); foreach(string str in arr) { ... Read More