Visual Basic dot Net (VB.net)
Visual Basic dot Net is a simple, modern, object-oriented computer programming language developed by Microsoft to combine the power of .NET Framework and the Common Language Runtime with the productivity benefits that are the hallmark of Visual Basic.
- Visual Basic .NET (VB.NET) is an object-oriented computer programming language implemented on the .NET Framework. Although it is an evolution of classic Visual Basic language, it is not backwards-compatible with VB6, and any code written in the old version does not compile under VB.NET.
- Like all other .NET languages, VB.NET has complete support for object-oriented concepts. Everything in VB.NET is an object, including all of the primitive types (Short, Integer, Long, String, Boolean, etc.) and user-defined types, events, and even assemblies. All objects inherits from the base class Object.
- VB.NET is implemented by Microsoft’s .NET framework. Therefore, it has full access to all the libraries in the .Net Framework. It’s also possible to run VB.NET programs on Mono, the open-source alternative to .NET, not only under Windows, but even Linux or Mac OSX.
The following reasons make VB.Net a widely used professional language −
- Modern, general purpose.
- Object oriented.
- Component oriented.
- Easy to learn.
- Structured language.
- It produces efficient programs.
- It can be compiled on a variety of computer platforms.
- Part of .Net Framework.
Strong Programming Features of VB.Net
- VB.Net has numerous strong programming features that make it endearing to multitude of programmers worldwide. Let us mention some of these features −
- Boolean Conditions
- Automatic Garbage Collection
- Standard Library
- Assembly Versioning
- Properties and Events
- Delegates and Events Management
- Easy-to-use Generics
- Simple Multi-threading
- We have already mentioned that VB.Net is part of .Net framework and used for writing .Net applications. Therefore before discussing the available tools for running a VB.Net program, let us understand how VB.Net relates to the .Net framework.
- The .Net Framework
- The .Net framework is a revolutionary platform that helps you to write the following types of applications −
- Windows applications
- Web applications
- Web services
- All these languages can access the framework as well as communicate with each other.
- The .Net framework consists of an enormous library of codes used by the client languages like VB.Net. These languages use object-oriented methodology.
Following are some of the components of the .Net framework −
- Common Language Runtime (CLR)
- The .Net Framework Class Library
- Framework Class Library
- Common Type System
- Metadata and Assemblies
- Windows Forms
- ASP.Net and ASP.Net AJAX
- Windows Workflow Foundation (WF)
- Windows Presentation Foundation
- Windows Communication Foundation (WCF)
Integrated Development Environment (IDE) For VB.Net
- Writing VB.Net Programs on Linux or Mac OS
- Although the.NET Framework runs on the Windows operating system, there are some alternative versions that work on other operating systems. Mono is an open-source version of the .NET Framework which includes a Visual Basic compiler and runs on several operating systems, including various flavors of Linux and Mac OS. The most recent version is VB 2012.
- The stated purpose of Mono is not only to be able to run Microsoft .NET applications cross-platform, but also to bring better development tools to Linux developers. Mono can be run on many operating systems including Android, BSD, iOS, Linux, OS X, Windows, Solaris and UNIX.
VB.Net Hello World Example
A VB.Net program basically consists of the following parts −
- Namespace declaration
- A class or module
- One or more procedures
- The Main procedure
- Statements & Expressions
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