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
Csharp Articles
Page 93 of 196
C# program to find Union of two or more Lists
Firstly, create lists −//three lists var list1 = new List{3, 4, 5}; var list2 = new List{1, 2, 3, 4, 5}; var list3 = new List{5, 6, 7, 8};Use the union method to get the union of list1 and list2 −var res1 = list1.Union(list2); var res2 = res1.Union(list3);The following is the complete code −Exampleusing System.Collections.Generic; using System.Linq; using System; public class Demo { public static void Main() { //three lists var list1 = new List{3, 4, 5}; var list2 = new List{1, 2, 3, 4, 5}; var list3 = new List{5, 6, 7, 8}; // finding union var res1 = list1.Union(list2); var res2 = res1.Union(list3); foreach(int i in res2) { Console.WriteLine(i); } } }Output3 4 5 1 2 6 7 8
Read MoreC# program to concat two or more Lists
Set three lists −// three lists var list1 = new List{3, 4}; var list2 = new List{1, 2, 3}; var list3 = new List{2, 5, 6};Now, use the Concat mthod to concat the above lists −var res1 = list1.Concat(list2); var res2 = res1.Concat(list3);Here is the complete code −Exampleusing System.Collections.Generic; using System.Linq; using System; public class Demo { public static void Main() { // three lists var list1 = new List{3, 4}; var list2 = new List{1, 2, 3}; var list3 = new List{2, 5, 6}; // concat var res1 = list1.Concat(list2); var res2 = res1.Concat(list3); foreach(int i in res2) { Console.WriteLine(i); } } }Output3 4 1 2 3 2 5 6
Read MoreC# program to find common values from two or more Lists
Create more than one list −// two lists var list1 = new List{3, 4}; var list2 = new List{1, 2, 3};Now, use the Intersect() method to get the common values −var res = list1.Intersect(list2);The following is the complete code −Exampleusing System.Collections.Generic; using System.Linq; using System; public class Demo { public static void Main() { // two lists var list1 = new List{3, 4}; var list2 = new List{1, 2, 3}; // common values var res = list1.Intersect(list2); foreach(int i in res) { Console.WriteLine(i); } } }Output3
Read MoreUnion Method in C#
The Union method gets the unique elements from both the lists.Let us set two lists −var list1 = new List{12, 65, 88, 45}; var list2 = new List{40, 34, 65};Now get the union of both the lists −var res = list1.Union(list2);The following is the example −Exampleusing System.Collections.Generic; using System.Linq; using System; public class Demo { public static void Main() { // two lists var list1 = new List{12, 65, 88, 45}; var list2 = new List{40, 34, 65}; // finding union var res = list1.Union(list2); foreach(int i in res) { Console.WriteLine(i); } } }Output12 65 88 45 40 34
Read MoreString slicing in C# to rotate a string
Let’s say our string is −var str = "welcome";Use the substring() method and the following, if you want to rotate only some characters. Here, we are rotating only 2 characters −var res = str.Substring(1, str.Length - 1) + str.Substring(0, 2);The following is the complete code −Exampleusing System; public class Program { public static void Main() { var str = "welcome"; Console.WriteLine("Original String = "+str); var res = str.Substring(1, str.Length - 1) + str.Substring(0, 2); Console.WriteLine("Rotating two characters in the String: "+res); } }OutputOriginal String = welcome Rotating two characters in the String: elcomewe
Read MoreString Formatting in C# to add padding
With C#, you can easily format content and add padding to it.To add padding −const string format = "{0,-5} {1,5}";Now, add the padding to the strings −string str1 = string.Format(format, "Rank","Student"); string str2 = string.Format(format, "2","Tom");Let us see the complete code −Exampleusing System; using System.Collections.Generic; public class Program { public static void Main() { // set padding const string format = "{0,-5} {1,5}"; string str1 = string.Format(format, "Rank","Student"); string str2 = string.Format(format, "2","Tom"); Console.WriteLine(str1); Console.WriteLine(str2); } }OutputRank Student 2 Tom
Read MoreString Formatting in C# to add padding on the right
To add padding on the right to a string −const string format = "{0,10}";Now add it to the string −string str1 = string.Format(format, "Marks","Subject");Let us see the complete code −Exampleusing System; public class Program { public static void Main() { // set right padding const string format = "{0,10}"; string str1 = string.Format(format, "Marks","Subject"); string str2 = string.Format(format, "95","Maths"); Console.WriteLine(str1); Console.WriteLine(str2); } }OutputMarks 95
Read MoreString Formatting with ToString in C#
To format a string, first set the value −int value = 55;Now to format the integer, use ToString and let’s say we need to set it for three places −value.ToString("000");The following is the complete code −Exampleusing System; public class Program { public static void Main() { int value = 55; string res = value.ToString("000"); Console.WriteLine(res); } }Output055
Read MoreSwapping Characters of a String in C#
To swap characters of a string, use the Select method.Firstly, let’s say our string is −string str = "PQRQP";Now, you need to swap every occurrence of P with Q and Q with P −str.Select(a=> a == 'P' ? 'Q' : (a=='Q' ? 'P' : a)).ToArray();The above replaces the characters.Let us see the compelet code −Exampleusing System; using System.Linq; public class Program { public static void Main() { string str = "PQRQP"; var res= str.Select(a=> a == 'P' ? 'Q' : (a=='Q' ? 'P' : a)).ToArray(); str = new String(res); Console.WriteLine(str); } }OutputQPRPQ
Read MoreHow to set a value to the element at the specified position in the one-dimensional array in C#
Firstly, set the array −int[] p = new int[] {55, 66, 88, 99, 111, 122, 133};Now, let us say you need to set an element at position 1 −p[2] = 77;Let us see the comple code −Exampleusing System; namespace Program { public class Demo { public static void Main(string[] args) { int[] p = new int[] {55, 66, 88, 99, 111, 122, 133}; int j; Console.WriteLine("Initial Array......"); for (j = 0; j < p.Length; j++ ) { ...
Read More