REALbasic

'''REALbasic''' (or '''RB''') is a BASIC compiler for Windows, Mac OS, and Linux, made by Xojo, Inc. It has its own IDE, and projects are saved to a proprietary binary format. Unlike most BASICs, REALbasic is heavily object-oriented.

As of June 2013, the language, IDE, and company have been re-branded as Xojo.

REALbasic is not compatible with other BASICs, for the most part; examples from other BASICs usually have to be completely rewritten to work in RB.

The Wikipedia article has lots of information about REALbasic's history, capabilities, and features.

Tasks

• Call a foreign-language function
• Classes
• Command-line arguments
• Echo server
• Factors of an integer
• FizzBuzz
• Forest fire
• Function definition
• HTTP
• HTTPS
• Hello world!
• Hello world/Graphical
• Hello world/Text
• Hello world/Web server
• Operator precedence
• Read entire file
• Rename a file
• Repeat a string
• Sorting algorithms/Bubble sort
• Sorting algorithms/Insertion sort
• URL encoding
• Variadic function
• Walk a directory/Recursively