Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Articles by karthikeya Boyini
Page 48 of 143
Write a C# program to calculate a factorial using recursion
Factorial of a number is what we are finding using a recursive function checkFact () in the below example −If the value is 1, it returns 1 since Factorial is 1 −if (n == 1) return 1;If not, then the recursive function will be called for the following iterations if you want the value of 5!Interation1: 5 * checkFact (5 - 1); Interation2: 4 * checkFact (4 - 1); Interation3: 3 * checkFact (3 - 1); Interation4: 4 * checkFact (2 - 1);To calculate a factorial using recursion, you can try to run the following code which ...
Read MoreC# program to return an array from methods
Call a method under Join method to join words −string.Join(" ", display())Now set a string array −string[] str = new string[5];Add individual elements −str[0] = "My"; str[1] = "name"; str[2] = "is"; str[3] = "Brad"; str[4] = "Pitt";And return the same string array from method −return str;The following is the complete code −Exampleusing System; public class Demo { public static void Main() { Console.WriteLine(string.Join(" ", display())); } static string[] display() { string[] str = new string[5]; // string array elements str[0] = "My"; str[1] = "name"; str[2] = "is"; str[3] = "Brad"; str[4] = "Pitt"; return str; } }OutputMy name is Brad Pitt
Read MoreC# program to get the last element from an array
Firstly, set an array −string[] str = new string[]{ "Java", "HTML", "jQuery", "JavaScript", "Bootstrap" };To get the value of the last element, get the length and display the following value −str[str.Length - 1]The above returns the last element.Here is the complete code −Exampleusing System; public class Demo { public static void Main() { string[] str = new string[] { "Java", "HTML", "jQuery", "JavaScript", "Bootstrap" }; Console.WriteLine("Array..."); foreach(string res in str) { Console.WriteLine(res); } Console.WriteLine("Last element: "+str[str.Length - 1]); } }OutputArray... Java HTML jQuery JavaScript Bootstrap Last element: Bootstrap
Read MoreHow to find the Sum of two Binary Numbers using C#?
To find the sum of two binary numbers, firstly set them.val1 = 11110; val2 = 11100;Now call the displaySum() method, which created to display the sumL.sum = displaySum(val1, val2);We have set a new array in the method to display each bit of the binary number.long[] sum = new long[30];Now let us see the complete code to calculate the sum of binary numbers as shown in the code below −Exampleusing System; class Demo { public static void Main(string[] args) { long val1, val2, sum = 0; val1 = 11110; val2 = ...
Read MoreHow to use the sleep method in C#?
The sleep method of the thread is used to pause the thread for a specific period.If you want to set sleep for some seconds, then use it like the following code snippet −int sleepfor = 2000; Thread.Sleep(sleepfor);You can try to run the following code to implement the sleep method of the thread −Exampleusing System; using System.Threading; namespace MyApplication { class ThreadCreationProgram { public static void CallToChildThread() { Console.WriteLine("Child thread starts"); int sleepfor = 2000; Console.WriteLine("Child Thread Paused for {0} seconds", sleepfor ...
Read MoreHow to check if a string is a valid keyword in C#?
To check if a string is a valid keyword, use the IsValidIdentifier method.The IsValidIdentifier method checks whether the entered value is an identifier or not. If it’s not an identifier, then it’s a keyword in C#.Let us see an example, wherein we have set the CodeDomProvider and worked with the IsValiddentifier method −CodeDomProvider provider = CodeDomProvider.CreateProvider("C#");Let us see the complete codeLExampleusing System; using System.IO; using System.CodeDom.Compiler; namespace Program { class Demo { static void Main(string[] args) { string str1 = "amit"; string str2 = "for"; ...
Read MoreAdd buttons in Bootstrap Navbar
Add buttons using class .navbar-btn to elements. You can try to run the following code to add a button to the navbarExample Bootstrap Example Example Submit Button Navbar Button
Read MoreHow do you loop through a C# array?
To loop through an array in C#, use any of the loops. These loops have starting and ending value set that allows you to set or check value through iterations.C# has while, do…while, for and foreach loops to loop through an array.Let us see an example of for loop in C# −Exampleusing System; namespace ArrayApplication { class MyArray { static void Main(string[] args) { int [] n = new int[10]; int i, j; for ( i = 0; i < 10; i++ ...
Read MoreSingleton Class in C#
Singleton Class allow for single allocations and instances of data. It has normal methods and you can call it using an instance.To prevent multiple instances of the class, the private constructor is used.Let us see an example −public class Singleton { static Singleton b = null; private Singleton() { } }The following is another example displaying how to display Singleton class −Exampleusing System; class Singleton { public static readonly Singleton _obj = new Singleton(); public void Display() { Console.WriteLine(true); } Singleton() {} } class Demo { public static void Main() { Singleton._obj.Display(); } }OutputTrue
Read MoreWhat are destructors in C# programs?
A destructor is a special member function of a class that is executed whenever an object of its class goes out of scope.It has exactly the same name as that of the class with a prefixed tilde (~), for example, our class name is Demo.public Demo() { // constructor Console.WriteLine("Object is being created"); } ~Demo() { //destructor Console.WriteLine("Object is being deleted"); }Let us see an example to learn how to work with Destructor in C#.Exampleusing System; namespace LineApplication { class Line { private double length; // Length of a line ...
Read More