C# and .NET Framework Core Concepts Q&A
Garbage Collection Importance and .NET Architecture
Importance of Garbage Collection (GC) in .NET
Garbage Collection (GC) is an automatic memory management feature in the .NET Framework that plays a crucial role in improving application performance and memory efficiency. Its importance includes:
- Automatic Memory Management: Developers do not need to manually allocate or deallocate memory, reducing complexity and potential errors.
- Improved Application Performance: By efficiently reclaiming unused memory,
C# and ASP.NET Core Concepts: Essential Development Topics
C# Fundamentals
CLR and .NET Applied Technologies
The Common Language Runtime (CLR) is the heart of the .NET framework, providing the execution environment for .NET applications.
CLR (Common Language Runtime)
It is the execution engine for .NET applications. It manages memory, code execution, security, and exception handling, among other services.
Features of CLR
- Memory Management: Automatic allocation and deallocation of memory via garbage collection, preventing memory leaks.
- Code Access Security (CAS)
C# Core Concepts: .NET Framework, OOP, and Data Types
Microsoft .NET Framework: Components Explained
The .NET Framework is a Windows-based platform developed by Microsoft used to build and run applications such as web, desktop, and services. It provides a managed environment with features like memory management, security, and cross-language support.
Main Components of .NET Framework
- Common Language Runtime (CLR): The core execution engine. It manages memory, security, exception handling, and threading. It converts Intermediate Language (IL) to native
Java Fundamentals: Constructors, Packages, GUI, and Exceptions
Java Constructors: Default and Parameterized
Constructors are special methods used to initialize objects. Java supports different types of constructors to suit various initialization needs.
Default Constructor
A default constructor is a constructor with no parameters. If you don’t define any constructor in your class, Java provides one by default.
Example: Default Constructor in Action
public class Student {
String name;
int age;
// Default constructor
Student() {
name = "Unknown"C# Fundamentals: Inheritance, Polymorphism, Delegates, Types
Single Inheritance in C#
Single inheritance is a fundamental concept in object-oriented programming where a class inherits properties and behaviors from a single parent class. This promotes code reusability and establishes an “is-a” relationship between classes.
using System;
class Vehicle
{
public void Start()
{
Console.WriteLine("Vehicle has started.");
}
}
class Car : Vehicle
{
public void Drive()
{
Console.WriteLine("Car is driving.");
}
}
class Program
ADO Connection and Command Objects Explained
Connection object (ADO)
A Connection object represents an open connection to a data source.
Comments
A Connection object represents a unique session with a data source. In the case of a client/server database system, this may be equivalent to a current network connection to the server. Depending on the provider’s functionality, some collections, methods, or properties of a Connection object may not be available. Using the collections, methods, and properties of a Connection object, you can do the following:
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