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Csharp Articles
Page 79 of 196
Use ReaderWriter Lock in C#
The ReaderWriterLock class in C# provides synchronized access to a resource by allowing multiple threads to read simultaneously while ensuring exclusive access for writing operations. It offers better performance than Monitor for scenarios where reads are frequent and writes are infrequent. Note: ReaderWriterLock is obsolete since .NET 3.5. The recommended alternative is ReaderWriterLockSlim, which provides better performance and functionality. Syntax Following is the syntax for declaring a ReaderWriterLock − static ReaderWriterLock rwLock = new ReaderWriterLock(); Following is the syntax for acquiring and releasing locks − // Acquire reader lock rwLock.AcquireReaderLock(timeout); try ...
Read MoreDeadlock and Starvation in C#
Deadlock occurs when two or more threads are permanently blocked, each waiting for a resource held by another thread. This creates a circular dependency where no thread can proceed, making it a critical problem in multithreaded applications. Starvation happens when a thread is indefinitely denied access to resources it needs, typically because other threads with higher priority continuously monopolize those resources. Understanding Deadlock A deadlock situation arises when threads hold locks and wait for other locks in a circular chain. The classic scenario involves two threads and two resources − Thread One Thread ...
Read MoreHow to insert an item into a C# list by using an index?
The Insert() method in C# allows you to add an item to a List at a specific index position. This method shifts existing elements to make room for the new item, automatically increasing the list's size. Syntax Following is the syntax for the Insert() method − list.Insert(index, item); Parameters index − The zero-based index at which the item should be inserted. item − The object to insert into the list. How It Works When you use Insert(), the method shifts all elements at and after ...
Read MoreInheritance vs Composition in C#
In C#, there are two fundamental ways to establish relationships between classes: inheritance and composition. Inheritance creates an "IS-A" relationship where a derived class inherits behavior from a base class, while composition creates a "HAS-A" relationship where one class contains instances of other classes as components. Inheritance Inheritance allows you to designate that a new class should inherit the members of an existing class. The existing class is called the base class, and the new class is referred to as the derived class. Inheritance implements the IS-A relationship. For example, mammal IS-A animal, dog IS-A mammal, hence dog ...
Read MoreBuffer GetByte Example in C#
The Buffer.GetByte() method in C# allows you to read individual bytes from an array at a specified byte position. This method is useful when you need to examine the binary representation of data stored in arrays of primitive types. Syntax Following is the syntax for the Buffer.GetByte() method − public static byte GetByte(Array array, int index) Parameters array − The source array from which to read the byte. index − The zero-based byte position within the array. Return Value Returns a byte value at the specified position in the ...
Read MoreSkipWhile method in C#
The SkipWhile method in C# is a LINQ extension method that skips elements from the beginning of a sequence as long as a specified condition is true. It stops skipping once it encounters the first element that doesn't meet the condition and returns all remaining elements, including any subsequent elements that might match the condition again. This method is particularly useful when you need to skip a consecutive sequence of elements from the start of a collection based on a specific criteria. Syntax Following is the syntax for the SkipWhile method − public static IEnumerable ...
Read MoreHow to validate a URL using regular expression in C#?
To validate a URL using regular expressions in C#, you need to check for proper URL structure including protocols, domain names, and top-level domains. Regular expressions provide a powerful way to match URL patterns and ensure they conform to expected formats. URL Components to Validate A valid URL typically consists of the following components − Protocol: http or https Domain: The website name (e.g., example, google) Top-level domain: .com, .org, .net, .edu, etc. Optional path and query parameters: Additional URL components URL Structure Breakdown https:// ...
Read MoreConstructor Overloading in C#
Constructor overloading in C# allows you to define multiple constructors within the same class, each with different parameters. This provides flexibility in object initialization, allowing different ways to create instances of the same class. Constructor overloading follows the same rules as method overloading − constructors must have different parameter lists (number, type, or order of parameters). Syntax Following is the syntax for constructor overloading − public class ClassName { public ClassName() { // default constructor } ...
Read MoreWhat is the Count property of BitArray class in C#?
The Count property of the BitArray class in C# returns the total number of elements (bits) in the BitArray. This is a read-only property that gives you the size of the BitArray, which is determined when the BitArray is created. Syntax Following is the syntax for accessing the Count property − int count = bitArray.Count; Return Value The Count property returns an int value representing the number of bits in the BitArray. Using Count Property with BitArray Let us first create a BitArray and then use the Count property to get ...
Read MoreCoupling in C#
Coupling in C# refers to the degree of interdependence between classes or modules in a software system. It measures how closely connected different parts of your code are to each other. Understanding coupling is crucial for writing maintainable and flexible applications. There are two main types of coupling − tight coupling and loose coupling. The goal in good software design is to achieve loose coupling while maintaining high cohesion. Tight Coupling In tight coupling, classes are highly dependent on each other. When one class changes, it directly affects other classes, making the code difficult to maintain and ...
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