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Articles by karthikeya Boyini
Page 64 of 143
Group by Operator in C#
Use the group by the operator in C# to separate the results of an expression into parts.Let’s say the following is our array −int[] a = { 5, 10, 15, 20, 25, 30 };Now, using Group by and orderby, we will find the elements greater than 20 −var check = from element in a orderby element group element by chkGreater(element);The following is the complete code −Exampleusing System; using System.Linq; class Demo { static void Main() { int[] a = { 5, 10, 15, 20, 25, 30 }; var check = from element in ...
Read MoreHow to iterate any Map in C#
C# has no built-in Math type. For the same, use a Dictionary.Firstly, create a Dictionary −Dictionary d = new Dictionary(); d.Add("keyboard", 1); d.Add("mouse", 2);Get the keys −var val = d.Keys.ToList();Now, use the foreach loop to iterate over the Map −foreach (var key in val) { Console.WriteLine(key); }To iterate it, try to run the following code −Exampleusing System; using System.Collections.Generic; using System.Linq; class Program { static void Main() { Dictionary d = new Dictionary(); d.Add("keyboard", 1); d.Add("mouse", 2); // get keys ...
Read MoreSet warning action for a list item in a list group with Bootstrap
To set warning action for a list item in a list group, use the .list-group-item-warning classExample Bootstrap Example Demo A B C D
Read MoreC# Program to display name of Current Thread
To display the name of the current thread in C#, use the Name property.Firstly, use the currentThread property to display information about a thread −Thread thread = Thread.CurrentThread;Now use the thread.Name property to display name of the thread −thread.NameExampleLet us see the complete code show current thread’s name in C#.using System; using System.Threading; namespace Demo { class MyClass { static void Main(string[] args) { Thread thread = Thread.CurrentThread; thread.Name = "My Thread"; Console.WriteLine("Thread Name = {0}", thread.Name); Console.ReadKey(); } } }OutputThread Name = My Thread
Read MoreHow to iterate over a C# dictionary?
Firstly, add elements −IDictionary d = new Dictionary(); d.Add(1,97); d.Add(2,89); d.Add(3,77); d.Add(4,88);Now, get the keys −List myList = new List(d.Keys);To iterate −foreach (int k in myList) { Console.WriteLine("{0}, {1}", k, d[k]); }The following is an example −Exampleusing System; using System.Collections.Generic; public class Demo { public static void Main() { IDictionary < int, int > d = new Dictionary < int, int > (); d.Add(1, 97); d.Add(2, 89); d.Add(3, 77); d.Add(4, 88); List < int > myList = new List < int > (d.Keys); foreach(int k in myList) { Console.WriteLine("{0}, {1}", k, d[k]); } } }Output1, 97 2, 89 3, 77 4, 88
Read MoreRound a number to the nearest even number in C#
The ToEven property is used with the MidpointRounding Enumeration to round a number to the nearest even number.Declare and initialize a decimal number −decimal val = 25.55M;To round a number to the nearest even number −decimal.Round(val, 0, MidpointRounding.ToEven)Here is the complete code −Exampleusing System; using System.Linq; class Demo { static void Main() { decimal val = 25.55M; Console.WriteLine(decimal.Round(val, 0, MidpointRounding.ToEven)); } }Output26
Read MoreDecimal constants in C#
Decimal type has constants to get the minimum and maximum values.Set a decimal value −decimal d = 5.8M;To get the minimum and maximum values of the decimal type, use the following properties −decimal.MaxValue decimal.MinValueHere is the complete code −Exampleusing System; using System.Linq; class Demo { static void Main() { decimal d = 5.8M; Console.WriteLine(d); Console.WriteLine("Maximum Value: "+decimal.MaxValue); Console.WriteLine("Maximum Value: "+decimal.MinValue); } }Output5.8 Maximum Value: 79228162514264337593543950335 Maximum Value: -79228162514264337593543950335
Read MoreC# Program to check if a number is Positive, Negative, Odd, Even, Zero
Check for the following conditions −For odd and even, check for the remainder when the number is divided by 2 −// checking for odd/ even if(n % 2 == 0) { Console.WriteLine("Even"); } else { Console.WriteLine("Odd"); }For positive, negative and checking whether a number is 0 or not −if (n < 0) { Console.WriteLine("Negative Number!"); } else if(n == 0) { Console.WriteLine("Zero"); } else { Console.WriteLine("Positive Number!"); }The following is the complete code:Exampleusing System; using System.Collections.Generic; public class Demo { public static void Main(string[] args) { int n = 19; ...
Read MoreAdd HTML Content to Bootstrap List Group
Bootstrap list groups are added using the list-group-item class.Add HTML content to the linked list groups using the following codeExample Bootstrap Example Tutorials Programming Tutorials on Java, C, C++, etc. Web Development Tutorials on PHP, HTML5, etc. Database Tutorials on DBMS, MySQL, DB2, etc. Quiz CAT Quiz for CAT students. NEET Quiz for NEET students.
Read MoreC# Program to display temporary file names
The GetTempPath() method in C# displays temporary file names −Path.GetTempPath();Get the names in a variable and display −string tempFile = Path.GetTempPath();The following is the code −Exampleusing System; using System.IO; class Demo { static void Main() { string tempFile = Path.GetTempPath(); Console.WriteLine(tempFile); } }Output/tmp/
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