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Articles by karthikeya Boyini
Page 66 of 143
What does Array.LongLength property of array class do in C#?
The Array.LongLength property gets a 64-bit integer that represents the total number of elements in all the dimensions of the Array.Let’s say your array of long data type is −long[,] arr1= new long[15, 35];Use the LongLength property to get an integer representing the total number of elements in all dimensions of the Array −arr1.LongLengthLet us see an example to implement the Array.LongLength property of array class −Exampleusing System; class Program { static void Main() { long[,] arr1= new long[15, 35]; long len1 = arr1.GetLongLength(0); Console.WriteLine(len1); Console.WriteLine(arr1.LongLength); } }Output15 525
Read MoreCompare two strings lexicographically in C#
To compare strings in C#, use the compare() method. It compares two strings and returns the following integer values −If str1 is less than str2, it returns -1. If str1 is equal to str2, it returns 0. If str1 is greater than str2, it returns 1.Set the two strings in the String.compare() method and compare them −string.Compare(string1, string2);ExampleYou can try to run the following code to compare two strings in C#.using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Demo { class MyApplication { static void Main(string[] args) { string ...
Read MoreDoes declaring an array create an array in C#?
Declaring an array does not initialize the array in the memory. When the array variable is initialized, you can assign values to the array.The following is a declaration and it will not create an array −int[] id;The following create an array of integers. The array is a reference type, so you need to use the new keyword to create an instance of the array −Int[] id = new int[5] {};Let us see an example −Exampleusing System; namespace ArrayApplication { public class MyArray { public static void Main(string[] args) { int [] ...
Read MoreHow to iterate two Lists or Arrays with one foreach statement in C#?
Set two arrays.var val = new [] { 20, 40, 60}; var str = new [] { "ele1", "ele2", "ele3"};Use the zip() method to process the two arrays in parallel.var res = val.Zip(str, (n, w) => new { Number = n, Word = w });The above fetches both the arrays with int and string elements respectively.Now, use foreach to iterate the two arrays −Exampleusing System; using System.Collections.Generic; using System.Linq; public class Demo { public static void Main() { var val = new [] { 20, 40, 60}; var str = new [] ...
Read MoreWhat is the use of 'new' keyword in C#?
Use the new keyword to create an instance of the array −int [] a = new int[5];The new operator is used to create an object or instantiate an object. Here in the example, an object is created for the class using the new −Exampleusing System; namespace CalculatorApplication { class NumberManipulator { public void swap(int x, int y) { int temp; temp = x; /* save the value of x */ x = y; /* put y into x */ ...
Read MoreBootstrap Horizontal Form
To create a horizontal form in Bootstrap, follow the below steps − Add a class of .form-horizontal to the parent element. Wrap labels and controls in a with class .form-group. Add a class of .control-label to the labels.You can try to run the following code to create a horizontal form in Bootstrap −Example Bootstrap Example First Name Last Name Remember me Sign in
Read MoreC# Program to remove duplicate characters from String
Use Hashset to remove duplicate characters.Here is the string −string myStr = "kkllmmnnoo";Now, use HashSet to map the string to char. This will remove the duplicate characters from a string.var unique = new HashSet(myStr);Let us see the complete example −Exampleusing System; using System.Linq; using System.Collections.Generic; namespace Demo { class Program { static void Main(string[] args) { string myStr = "kkllmmnnoo"; Console.WriteLine("Initial String: "+myStr); var unique = new HashSet(myStr); Console.Write("New String after removing duplicates: "); foreach (char c in unique) Console.Write(c); } } }OutputInitial String: kkllmmnnoo New String after removing duplicates: klmno
Read MoreHow to validate a string for a numeric representation using TryParse in C#
The following is our string −string myStr = "5";To check whether the above is a string with numeric representation, use TryParse and out.int.TryParse(myStr, out a);Here is the complete code.Exampleusing System.IO; using System; class Program { static void Main() { bool res; int a; string myStr = "5"; // checking for valid string representation of a number res = int.TryParse(myStr, out a); Console.WriteLine(res); } }OutputTrue
Read MoreHow to get int value from enum in C#?
Firstly, set the enum −public enum Vehicle { Car, Bus, Truck }Now use typecasting to cast an enum to int −int a = (int)Vehicle.Car;The following is the complete code to cast an enum to int −Exampleusing System; public class Demo { public enum Vehicle { Car, Bus, Truck } public static void Main() { int a = (int)Vehicle.Car; int b = (int)Vehicle.Bus; int c = (int)Vehicle.Truck; Console.WriteLine("Car = {0}", a); Console.WriteLine("Bus = {0}", b); Console.WriteLine("Truck = {0}", c); } }OutputCar = 0 Bus = 1 Truck = 2
Read MoreDate Parsing using SimpleDateFormat
The SimpleDateFormat class has parse() method, which tries to parse a string according to the format stored in the given SimpleDateFormat object.Exampleimport java.util.*; import java.text.*; public class DateDemo { public static void main(String args[]) { SimpleDateFormat ft = new SimpleDateFormat ("yyyy-MM-dd"); String input = args.length == 0 ? "1818-11-11" : args[0]; System.out.print(input + " Parses as "); Date t; try { t = ft.parse(input); System.out.println(t); } catch (ParseException e) { System.out.println("Unparseable using " + ft); } } }A sample run of the above program would produce the following result −Output1818-11-11 Parses as Wed Nov 11 00:00:00 EST 1818
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