Let’s say you need to find the elements in the following list to be greater than 80.int[] arr = new int[] {55, 100, 87, 45};For that, loop until the array length. Here, res = 80 i.e. the given element.for (int i = 0; i < arr.Length; i++) {    if(arr[i] res) {                Console.WriteLine(arr[i]);             }          }       }    } }

Declare a list and add elements.List list = new List(); list.Add(50); list.Add(90); list.Add(50); list.Add(100);Now, use Distinct() method to get the unique elements only.List myList = list.Distinct().ToList();The following is the complete code to remove duplicate elements from a List −Example Live Demousing System; using System.Collections.Generic; using System.Linq; public class Demo {    public static void Main() {       List < int > list = new List < int > ();       list.Add(50);       list.Add(90);       list.Add(50);       list.Add(100);       Console.WriteLine("Initial List...");       foreach(int a in list) ... Read More

Set the first list.int[] arr1 = {    65,    57,    63,    98 };Now, set the second list.int[] arr2 = {    43,    65,    33,    57 };Let us now see the complete code to check if two lists have common elements using == and < operators.Example Live Demousing System; using System.Collections.Generic; using System.Linq; public class Program {    public static void Main() {       int[] arr1 = {          65,          57,          63,          98       }; ... Read More

Firstly, declare and initialize a jagged array.int[][] arr = new int[][] { new int[] {    0,    0 }, new int[] {    1,    2 }, new int[] {    2,    4 }, new int[] {    3,    6 }, new int[] {    4,    8 } };Now use the length property to get the length.arr.LengthThe following is the complete code −Example Live Demousing System; public class Program {    public static void Main() {       int[][] arr = new int[][]{new int[]{0,0},new int[]{1,2}, new int[]{2,4},new int[]{ 3, 6 }, new       int[]{ 4, 8 } };       // Length       Console.WriteLine("Length:"+arr.Length);       Console.WriteLine("Upper Bound: {0}",arr.GetUpperBound(0).ToString());       Console.WriteLine("Lower Bound: {0}",arr.GetLowerBound(0).ToString());       Console.WriteLine("Dimensions of Array : " + arr.Rank);    } }OutputLength:5 Upper Bound: 4 Lower Bound: 0 Dimensions of Array : 1

To copy or clone a C# list, firstly set a list.List < string > myList = new List < string > (); myList.Add("One"); myList.Add("Two");Now declare a string array and use the CopyTo() method to copy.string[] arr = new string[10]; myList.CopyTo(arr);Let us see the complete code to copy a list into a one-dimensional array.Exampleusing System; using System.Collections.Generic; using System.Linq; public class Demo {    public static void Main() {       List < string > myList = new List < string > ();       myList.Add("One");       myList.Add("Two");       myList.Add("Three");       myList.Add("Four"); ... Read More

For validity of a password, you need to recall the concept when your create a password to signup to a website.While creating a password, you may have seen the validation requirements on a website like a password should be strong and have −Min 8 char and max 14 charOne upper caseOne special charOne lower caseNo white spaceLet us see how to check the conditions one by one.Min 8 char and max 14 charif (passwd.Length < 8 || passwd.Length > 14) return false;One upper caseif (!passwd.Any(char.IsUpper)) return false;Atleast one lower caseif (!passwd.Any(char.IsLower)) return false;No white spaceif (passwd.Contains(" ")) return false;Check for ... Read More

Using Synchronization, you can synchronize access to resources in multithreaded applications.A mutex can be used to synchronize threads across processes Use it to prevent the simultaneous execution of a block of code by more than one thread at a time.C# lock statement is used to ensure that a block of code runs without interruption by other threads. A Mutual-exclusion lock is obtained for a given object for the duration of the code block.Thread pool in C# is a collection of threads. It is used to perform tasks in the background. When a thread completes a task, it is sent to ... Read More

The best IDE for C# on Windows is Microsoft Visual Studio. It is an IDE to develop websites, web apps, mobile apps, etc.The following are the features of Visual Studio IDE −Code Editor − Visual Studio has a code editor supporting syntax highlighting and code completion using IntelliSense.Breakpoints − Set breakpoints and allow monitoring the variable values as the execution progress.Extend Capability − With Visual Studio, you can extend the functionality of the IDE. The extension includes macros, packages, etc.Built-in-languages − Visual Studio supports more than 30 programming languages, including C#, F#, JavaScript, TypeScript, etc.Here are the steps to compile ... Read More

To compile and execute C# programs on Linux, firstly you need to IDE. On Linux, one of the best IDEs is Monodevelop.It is an open source IDE that allows you to run C# on multiple platforms i.e. Windows, Linux and MacOS. Monodevelop is also known as Xamarin Studio. It has a C# compiler to run C# programs.Monodevelop has the following features −Multi-platform IDE − Supports Linux, Windows and macOS.Supports multiple languages − MonoDevelop supports multiple languages such as C#, F#, Visual Basic .NET, etc.Integrated Debugger − It comes with an integrated debugger for debugging Mono and native applications.Code Completion − ... Read More

To compile and execute C# programs on Mac, firstly you need to IDE. On MacOS, one of the best IDEs is Monodevelop.Monodevelop is an open source IDE that allows you to run C# on multiple platforms i.e. Windows, Linux, and MacOS. MonoDevelop is also known as Xamarin Studio.Monodevelop has a C# compiler to run C# programs. It can be used on Windows, macOS and Linux.For Mac, a special version of MonoDevelop was introduced and it was called Visual Studio for Mac. It has many of the features of what the same IDE provides for Windows like a tool for and ... Read More