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Articles by karthikeya Boyini
Page 55 of 143
C# program to count the occurrences of each character
Firstly, set the string −string str = "Website"; Console.WriteLine("String: "+str);Check for every character in the string and increment a variable that would count the number of occurrences of that character −for (int j = 0; j < str.Length; j++) { if (str[0] == str[j]) { cal++; } }ExampleYou can try to run the following code to count the occurrences of each character.using System; public class Demo { public static void Main() { string str = "Website"; Console.WriteLine("String: "+str); while (str.Length > 0) { ...
Read MoreC# Program to find the largest element from an array
Declare an array −int[] arr = { 20, 50, -35, 25, 60 };Now to get the largest element from an array, use the Max() method −arr.Max());Here is the complete code −Exampleusing System; using System.Linq; class Demo { static void Main() { int[] arr = { 20, 50, -35, 25, 60 }; Console.WriteLine(arr.Max()); } }Output60
Read MoreC# program to count total set bits in a number
The number for our example is 11 i.e. binary −1101The total set bits are 3 in 1101; to find it, use a loop till it’s not equal to 0. Here, our num is 11 i.e. decimal −while (num>0) { cal += num & 1; num >>= 1; }ExampleTo count total set bits in a number, use the following code.using System; public class Demo { public static void Main() { int cal = 0; // Binary is 1011 int num = 11; while (num>0) { cal += num & 1; num >>= 1; } // 1 bits in 1101 are 3 Console.WriteLine("Total bits: "+cal); } }OutputTotal bits: 3
Read MoreWhat are the differences between ref and out parameters in C#?
Ref ParameterA reference parameter is a reference to a memory location of a variable. When you pass parameters by reference, unlike value parameters, a new storage location is not created for these parameters.You can declare the reference parameters using the ref keyword. The following is an example −Exampleusing System; namespace CalculatorApplication { class NumberManipulator { public void swap(ref int x, ref int y) { int temp; temp = x; /* save the value of x */ x = y; /* put y ...
Read MoreGroup 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
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