search
Final keyword in C#Aug 26, 2023 am 08:33 AM

C# 中的 Final 关键字

Java has the final keyword, but C# does not have its implementation. For the same implementation, use the seal keyword.

Using seal, you can prevent methods from being overridden. When you use the sealed modifier on a method in C#, the method loses its override functionality. The Sealed method should be part of the derived class and the method must be an overridden method.

The following example does not allow you to override the method display() because it has the seal modifier of the ClassTwo derived class.

ClassOne is our base class, while ClassTwo and ClassThree are derived classes -

Example

class ClassOne {
   public virtual void display() {
         Console.WriteLine("Baseclass");
   }
}

class ClassTwo : ClassOne {
   public sealed override void display() {
      Console.WriteLine("ClassTwo:derivedClass");
   }
}

class ClassThree : ClassTwo {
   public override void display() {
      Console.WriteLine("ClassThree: Another Derived Class");
   }
}

The above is the detailed content of Final keyword in C#. For more information, please follow other related articles on the PHP Chinese website!

Statement
This article is reproduced at:tutorialspoint. If there is any infringement, please contact admin@php.cn delete
What are the alternatives to NULL in C languageWhat are the alternatives to NULL in C languageMar 03, 2025 pm 05:37 PM

This article explores the challenges of NULL pointer dereferences in C. It argues that the problem isn't NULL itself, but its misuse. The article details best practices for preventing dereferences, including pre-dereference checks, pointer initiali

How to add next-level C compilerHow to add next-level C compilerMar 03, 2025 pm 05:44 PM

This article explains how to create newline characters in C using the \n escape sequence within printf and puts functions. It details the functionality and provides code examples demonstrating its use for line breaks in output.

Which C language compiler is better?Which C language compiler is better?Mar 03, 2025 pm 05:39 PM

This article guides beginners on choosing a C compiler. It argues that GCC, due to its ease of use, wide availability, and extensive resources, is best for beginners. However, it also compares GCC, Clang, MSVC, and TCC, highlighting their differenc

Is NULL still important in modern programming in C language?Is NULL still important in modern programming in C language?Mar 03, 2025 pm 05:35 PM

This article emphasizes the continued importance of NULL in modern C programming. Despite advancements, NULL remains crucial for explicit pointer management, preventing segmentation faults by marking the absence of a valid memory address. Best prac

What are the web versions of C language compilers?What are the web versions of C language compilers?Mar 03, 2025 pm 05:42 PM

This article reviews online C compilers for beginners, focusing on ease of use and debugging capabilities. OnlineGDB and Repl.it are highlighted for their user-friendly interfaces and helpful debugging tools. Other options like Programiz and Compil

C language online programming website C language compiler official website summaryC language online programming website C language compiler official website summaryMar 03, 2025 pm 05:41 PM

This article compares online C programming platforms, highlighting differences in features like debugging tools, IDE functionality, standard compliance, and memory/execution limits. It argues that the "best" platform depends on user needs,

Method of copying code by C language compilerMethod of copying code by C language compilerMar 03, 2025 pm 05:43 PM

This article discusses efficient code copying in C IDEs. It emphasizes that copying is an IDE function, not a compiler feature, and details strategies for improved efficiency, including using IDE selection tools, code folding, search/replace, templa

How to solve the problem of not popping up the output window by the C language compilerHow to solve the problem of not popping up the output window by the C language compilerMar 03, 2025 pm 05:40 PM

This article troubleshoots missing output windows in C program compilation. It examines causes like failing to run the executable, program errors, incorrect compiler settings, background processes, and rapid program termination. Solutions involve ch

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
1 months agoBy尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

SAP NetWeaver Server Adapter for Eclipse

SAP NetWeaver Server Adapter for Eclipse

Integrate Eclipse with SAP NetWeaver application server.

MinGW - Minimalist GNU for Windows

MinGW - Minimalist GNU for Windows

This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

VSCode Windows 64-bit Download

VSCode Windows 64-bit Download

A free and powerful IDE editor launched by Microsoft

MantisBT

MantisBT

Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

mPDF

mPDF

mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),