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Articles by karthikeya Boyini
Page 59 of 143
C# Program to remove whitespaces in a string
Let’s say the following is the string −StringBuilder str = new StringBuilder("Patience is key!");To remove whitespace, you can use the replace method.str.Replace(" ", "");Let us see the complete code.Exampleusing System; using System.Text; class Demo { static void Main() { // Initial String StringBuilder str = new StringBuilder("Patience is key!"); Console.WriteLine(str.ToString()); // Replace str.Replace(" ", ""); // New String Console.WriteLine(str.ToString()); Console.ReadLine(); } }OutputPatience is key! Patienceiskey!
Read MoreRepresent Int32 as a Binary String in C#
To represent Int632as a Binary string in C#, use the ToString() method and set the base as the ToString() method’s second parameter i.e. 2 for Binary.Int32 represents a 32-bit signed integer.Firstly, set an Int64 variable −int val = 30;Now, convert it to a binary string by including 2 as the second parameter.Convert.ToString(val, 2)Exampleusing System; class Demo { static void Main() { int val = 30; Console.WriteLine("Integer: "+val); Console.Write("Binary String: "+Convert.ToString(val, 2)); } }OutputInteger: 30 Binary String: 11110
Read MoreC# Round-trip ("R") Format Specifier
This round-trip ("R") format specifier is supported for the Single, Double, and BigInteger types.It ensures that a numeric value converted to a string is parsed back into the same numeric value.Let us see an example −Firstly, we have a double variable.double doubleVal = 0.91234582637;Now, use the ToString() method: and set the Round-trip format specifier.doubleVal.ToString("R", CultureInfo.InvariantCulture);Let us see the complete example −Exampleusing System; using System.Numerics; using System.Globalization; class Demo { static void Main() { double doubleVal = 0.91234582637; string str = doubleVal.ToString("R", CultureInfo.InvariantCulture); double resRound = double.Parse(str, CultureInfo.InvariantCulture); ...
Read MoreBootstrap .has-error class
The has-error class allows you to set error for input.You can try to run the following code to implement the has-error classExample Bootstrap Example Input with error
Read MoreTernary Operator in C#
Ternary operator is a Conditional operator in C#. It takes three arguments and evaluates a Boolean expression.For example −b = (a == 1) ? 20 : 30;Above, if the first operand evaluates to true (1), the second operand is evaluated. If the first operand evaluates to false (0), the third operand is evaluated.The following is an example −Exampleusing System; namespace DEMO { class Program { static void Main(string[] args) { int a, b; a = 10; b = (a == 1) ? 20 : 30; Console.WriteLine("Value of b is {0}", b); b = (a == 10) ? 20 : 30; Console.WriteLine("Value of b is {0}", b); Console.ReadLine(); } } }OutputValue of b is 30 Value of b is 20
Read MoreHow to print the first ten Fibonacci numbers using C#?
For displaying the first ten numbers, firstly set the first two numbers.int val1 = 0, val2 = 1;Now, use a for loop from 2 to 10, to display first ten Fibonacci numbers −for(i=2;i
Read MoreCoupling in Java
Coupling refers to the usage of an object by another object. It can also be termed as collaboration. This dependency of one object on another object to get some task done can be classified into the following two types −Tight coupling - When an object creates the object to be used, then it is a tight coupling situation. As the main object creates the object itself, this object can not be changed from outside world easily marked it as tightly coupled objects.Loose coupling - When an object gets the object to be used from the outside, then it is a loose coupling ...
Read MoreC# program to check for a string that contains all vowels
To check for all vowels, firstly set the condition to check −string res = str.Where(chk =< "aeiouAEIOU".Contains(chk)).Distinct();Above, we have used the string −string str = "the quick brown fox jumps over the lazy dog";Now, using the Any() method checks whether the string has any vowels or not −if(!res.Any()) Console.WriteLine("No vowels!");Loop through the string to get the vowels −Exampleusing System; using System.Linq; public class Program { public static void Main() { string str = "the quick brown fox jumps over the lazy dog"; var res = str.Where(chk =< "aeiouAEIOU".Contains(chk)).Distinct(); ...
Read MoreHow to convert a number from Decimal to Binary using recursion in C#?
To get the binary of Decimal, using recursion, firstly set the decimal number −int dec = 30;Now pass the value to a function −public int displayBinary(int dec) { }Now, check the condition until the decimal value is 0 and using recursion get the mod 2 of the decimal num as shown below. The recursive call will call the function again with the dec/2 value −public int displayBinary(int dec) { int res; if (dec != 0) { res = (dec % 2) + 10 * displayBinary(dec / 2); Console.Write(res); return ...
Read MoreBootstrap .btn class
Use the .btn class in Bootstrap to add a button to the web page.You can try to run the following code to implement a .btn classExample Bootstrap Example Result
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