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The DateTime.Equals() method in C# is used to check whether two DateTime objects or instances are equal or not. It returns true if both are equal, otherwise false. This method performs a tick-by-tick comparison, meaning it compares the exact moment in time down to the smallest unit (100-nanosecond intervals). Two DateTime objects are considered equal only if they represent the exact same point in time. Syntax Following is the syntax for the static DateTime.Equals() method − public static bool Equals(DateTime date1, DateTime date2); Parameters date1 − The first DateTime object ... Read More
The Decimal.ToInt32() method in C# is used to convert the value of the specified Decimal to the equivalent 32-bit signed integer. This method performs truncation, meaning it removes the fractional part without rounding. Syntax Following is the syntax − public static int ToInt32(decimal val); Parameters val − The decimal number to convert to a 32-bit signed integer. Return Value Returns an int value that represents the truncated decimal value. If the decimal has fractional digits, they are discarded (not rounded). How It Works The method truncates the decimal value ... Read More
The internal keyword in C# is an access modifier that provides assembly-level access. It allows class members to be accessible within the same assembly but restricts access from other assemblies, making it ideal for creating APIs that should only be used internally within your project. Syntax Following is the syntax for declaring internal members − internal class ClassName { // class accessible within assembly only } class MyClass { internal int field; // field accessible within assembly ... Read More
Finding the product of two numbers using recursion in C# is an interesting approach that demonstrates how multiplication can be implemented using only addition and recursive function calls. Instead of using the standard multiplication operator, we build the product by repeatedly adding one number to itself. How Recursive Multiplication Works The concept is based on the mathematical principle that multiplication is repeated addition. For example, 5 × 3 = 5 + 5 + 5. In recursion, we add the first number to itself and reduce the second number by 1 until it reaches zero. ... Read More
The StreamWriter class in C# is used to write characters to a stream in a particular encoding. It provides an easy way to create and write text to files, making it essential for file I/O operations. StreamWriter automatically handles file creation and provides various methods to write text data efficiently. Syntax Following is the syntax for creating a StreamWriter object − StreamWriter writer = new StreamWriter("filename.txt"); Using the using statement ensures automatic disposal − using (StreamWriter writer = new StreamWriter("filename.txt")) { writer.WriteLine("text"); } Basic File Writing ... Read More
The Console.BufferHeight property in C# gets or sets the height of the buffer area in rows. The buffer height represents the maximum number of text rows that can be stored in the console's internal buffer before older lines are discarded. This property is particularly useful when you need to control how much output history the console retains or when working with console applications that produce large amounts of output. Syntax Following is the syntax for using the BufferHeight property − // Get buffer height int height = Console.BufferHeight; // Set buffer height Console.BufferHeight = ... Read More
The DateTime.FromBinary() method in C# is used to deserialize a 64-bit binary value and recreate an original serialized DateTime object. This method is particularly useful when you need to restore a DateTime object that was previously converted to its binary representation using ToBinary(). Syntax Following is the syntax − public static DateTime FromBinary(long dateData); Parameters dateData: A 64-bit signed integer that encodes the Kind property in a 2-bit field and the Ticks property in a 62-bit field. Return Value This method returns a DateTime object that is equivalent to the DateTime ... Read More
The Decimal.ToInt64() method in C# is used to convert the value of the specified Decimal to the equivalent 64-bit signed integer (long). This method truncates the decimal portion, returning only the whole number part. Syntax Following is the syntax − public static long ToInt64(decimal val); Parameters val − The decimal number to convert to a 64-bit signed integer. Return Value This method returns a long value that represents the truncated decimal value. The fractional part is discarded, not rounded. How It Works The method performs ... Read More
The GroupBy() method in C# is a LINQ extension method that groups elements from a collection based on a specified key selector function. It returns an IGrouping where elements sharing the same key are grouped together. Syntax Following is the syntax for the GroupBy() method − public static IEnumerable GroupBy( this IEnumerable source, Func keySelector ) Parameters source − The collection to group elements from. keySelector − A function that extracts the key for each element. Return Value Returns an ... Read More
The scope of a private member variable in C# is limited to the class in which it is declared. Only methods and properties within the same class can directly access private members. This implements the principle of data encapsulation, which hides internal implementation details from external code. Syntax Following is the syntax for declaring private member variables − private dataType variableName; Private members can only be accessed by methods within the same class − class ClassName { private int value; public void ... Read More