C# reflection, interfaces, abstract class, generics, ref vs out, C# versions 4,5,6 and features.
C# ArrayList is a non-generic dynamic size collection class. ArrayList class exists in System.Collections namespace. ArrayList are dynamic means we can add any number of items without specifying the size of it. ArrayList vs Array ArrayList and Array looks same. But there are some major differences between them. Differences are: …
C# Hashtable class is a collection class where we can store data in the key/value pair. Hashtable is not type-safe. Hashtable is not generic and both key and value are based on object type. Hashtable is used to store unique keys data. If we try to assign value to already used key, …
This article is an introduction to the C# using statement and explain why and how to use it. I’ll also describe features of using statement and examples of nested using. In C#, every object is using some resources managed or unmanaged internally. Client is responsible for life cycle of the object. Life …
Q 1. What is the difference between Process and Thread? A process is started when you start an Application. A process is a collection of resources like virtual address space, code, security contexts etc. A process can start multiple threads. Every process is start with a single thread called primary …
Q 21. What is the class hierarchy of wait handles? Q 22. What is ManualResetEvent and how it is different between AutoResetEvent? ManualResetEvent is also a synchronization mechanism similar to AutoResetEvent which works on bool variable. If the bool variable is false, it blocks the thread. If true, it unblocks the …
In C#, there are there ways for converting string to int. Each way has its own advantages and disadvantages. These ways are: int.Parse method int.Parse method converts string input into integer. It takes the string input and returns int as output. Before using the int.parse, we must sure the string has a valid …
ConcurrentDictionary is one of five collection classes introduced in.NET 4.0. It exists in System.Collections.Concurrent namespace. ConcurrentDictionary is a thread-safe collection class to store key-value pairs. ConcurrentDictionary can be used with multiple threads concurrently. Without ConcurrentDictionary class, if we have to use Dictionary class with multiple threads, then we have to use locks to …
C# ConcurrentQueue is a thread-safe collection class. It is introduced in .NET 4.0 with other concurrent collection classes. It provides a thread-safe First-In-First-Out (FIFO) data structure. You can read more about Queue here. ConcurrentQueue exists in System.Collections.Concurrent namespace ConcurrentQueue is a wrapper around generic Queue class. Queue class also provides FIFO data structure but …
ConcurrentStack is a thread-safe generic collection class introduced in .NET 4.0 framework. It provides a Last-In-First-Out (LIFO) data structure. You can read more about Stack here. ConcurrentStack is like wrapper around Stack class. Stack class is not thread-safe. ConcurrentStack provides thread-safety. It internally uses locking to synchronize different threads. Create …
BlockingCollection is a collection class which ensures thread-safety. Multiple threads can add and remove objects in BlockingCollection concurrently. It implements the producer-consumer pattern. In this pattern, there are two threads one is called producer and other is called consumer. Both threads share a common collection class to exchange data between them. …