Writing internet application with visual basic
Kernighan and Dennis M. Ritchie, The C Programming Language.
Programming Visual Basic .NET by Dave Grundgeiger
It has become a tradition for source books to begin with a hello, world example. The idea is that writing internet application with visual basic and running a visual basic program—may be the biggest hurdle faced by experienced programmers approaching a new platform or language. Without overcoming this hurdle, nothing else can follow.
This chapter contains three such examples: Each example stands alone and can be run as is. NET application with a command-line compiler! This version of hello, world is a console application -- it displays writing internet application with visual basic output in a Windows command-prompt window.
The command vbc invokes the Visual Basic. NET command-line compiler, which ships writing internet application with visual basic the.
After compiling, type Hello at the command line to run your program. Figure shows the results of compiling and running this program. Types are grouped into namespaces writing internet application with visual basic help avoid name collisions writing internet application with visual basic to group related types together.
Specifically, the hello, world program uses the Console class, which is defined in the System namespace. The Imports statement is merely a convenience. It is not needed if the developer is willing to qualify type writing internet with their namespace names.
For example, the hello, world program could have been written this way:. However, it is customary to use the Imports statement to reduce keystrokes and visual clutter.
An important namespace for Visual Basic developers is Microsoft.
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More than likely, you already have a general idea of what the Internet is, and you use it every day for email, Web browsing, and downloading files. You can use any document on the Internet, including spreadsheets and databases, but sometimes you need to do a little programming to force the application to do what you want it to do.
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