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Articles by karthikeya Boyini
Page 16 of 143
C# Queryable Take() Method
The Take() method in C# is a LINQ extension method that returns a specified number of contiguous elements from the start of a sequence. It's commonly used with IQueryable collections to limit the number of results returned from a query. Syntax Following is the syntax for the Take() method − public static IQueryable Take( this IQueryable source, int count ) Parameters source − The IQueryable to return elements from. count − The number of elements to return. Return Value ...
Read MoreC# Program to Convert Character case
Converting character case in C# is a common string manipulation task. The string class provides built-in methods ToLower() and ToUpper() to convert strings to lowercase and uppercase respectively. Syntax Following is the syntax for converting string case − string.ToLower() // Converts to lowercase string.ToUpper() // Converts to uppercase Both methods return a new string with the case converted and do not modify the original string. Using ToLower() Method The ToLower() method converts all uppercase characters in a string to lowercase − using System; ...
Read MoreGet the creation time of a file in C#
To get the creation time of a file in C#, you can use the CreationTime property of the FileInfo class or the static methods from the File class. This allows you to retrieve when a file was originally created on the file system. Syntax Using the FileInfo class − FileInfo fileInfo = new FileInfo("filename.txt"); DateTime creationTime = fileInfo.CreationTime; Using the static File class − DateTime creationTime = File.GetCreationTime("filename.txt"); Using FileInfo Class The FileInfo class provides an object-oriented approach to work with file information. Create a FileInfo object and access ...
Read MoreC# Program to Convert Decimal to Binary
Converting a decimal number to binary involves repeatedly dividing the decimal number by 2 and collecting the remainders. In C#, this can be accomplished using manual division or built-in methods like Convert.ToString(). The manual approach uses the division by 2 method where we divide the decimal number by 2, store the remainder, and continue until the quotient becomes 0. The binary representation is formed by reading the remainders in reverse order. Using Manual Division Method This method involves dividing the decimal number by 2 repeatedly and collecting remainders − Decimal to Binary ...
Read MoreWhat are punctuators in C#?
Punctuators are special symbols in C# that serve as delimiters to structure, group, and organize code. They are essential for proper syntax and help the compiler understand where statements begin and end, how to group code blocks, and how to separate elements. Common Punctuators in C# The most frequently used punctuators in C# include − { } // Braces - code blocks ( ) // Parentheses - method calls, grouping [ ] // Brackets - arrays, indexers ; // Semicolon - statement terminator , ...
Read MoreLiteral number suffixes in C#
Literal number suffixes in C# are used to explicitly specify the data type of numeric literals. Without suffixes, the compiler infers the type based on the value, but suffixes ensure the literal is treated as a specific numeric type. These suffixes are particularly useful when working with method overloads, preventing ambiguous type conversions, and ensuring the correct data type is used for calculations. Syntax Following is the syntax for using literal number suffixes − dataType variable = numericValue + suffix; The suffix can be either uppercase or lowercase, but uppercase is recommended for ...
Read MoreC# Program to order array elements
C# provides several methods to order array elements. The OrderBy() method sorts elements in ascending order, while ThenBy() is used for secondary sorting criteria when multiple elements have the same primary sort value. Syntax Following is the syntax for ordering array elements using LINQ methods − // Primary ordering IEnumerable result = array.OrderBy(item => item.Property); // Primary and secondary ordering IEnumerable result = array.OrderBy(item => item.Property1) ...
Read MoreC# Program to convert first character uppercase in a sentence
Converting the first character of each word to uppercase in a sentence is a common text formatting task in C#. This process involves identifying word boundaries and converting the first lowercase letter of each word to its uppercase equivalent. Syntax Following is the basic approach to convert characters from lowercase to uppercase − char uppercaseChar = (char)(lowercaseChar - 'a' + 'A'); To check if a character is a lowercase letter − if (ch >= 'a' && ch = 'a' && val[i] = 'A' && val[i] word.Length > 0 ? ...
Read MoreHow to call a method of a class in C#
To call a method of a class in C#, you need to create an instance of the class first, then use the dot notation to access its methods. The general syntax is objectName.MethodName(parameters). Syntax Following is the syntax for calling an instance method − ClassName objectName = new ClassName(); returnType result = objectName.MethodName(parameters); For static methods, you call them directly on the class without creating an instance − returnType result = ClassName.StaticMethodName(parameters); Using Instance Methods Instance methods require an object of the class to be called. Here's how you ...
Read MoreRandom Numbers in C#
The Random class in C# is used to generate pseudo-random numbers. It provides various methods to generate random integers, doubles, and bytes within specified ranges. Syntax Following is the syntax for creating a Random object and generating random numbers − Random rd = new Random(); int randomNumber = rd.Next(minValue, maxValue); Following are the commonly used methods of the Random class − rd.Next() // Random int from 0 to int.MaxValue rd.Next(maxValue) ...
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