BETA - Programming language

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BETA is a programming language created in 1983 by Bent Bruun Kristensen and Ole Lehrmann Madsen and Birger Møller-Pedersen and Kristen Nygaard.

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BETA is a pure object-oriented language originating within the "Scandinavian School" in object-orientation where the first object-oriented language Simula was developed. Among its notable features, it introduced nested classes, and unified classes with procedures into so called patterns.. Read more on Wikipedia...

Tags: programming language
Early development of BETA happened in Scandinavian School of object- orientation
Explore BETA snippets on Rosetta Code
BETA on HOPL
BETA appears in the TIOBE Index
See also: (2 related languages) Simula, Eiffel

Example from hello-world:

ORIGIN '~beta/basiclib/betaenv'
-- program: Descriptor --
(* Hello World in BETA *)
(# do 'Hello World' -> putLine #)

Example from the Hello World Collection:

{ *** Hello World in BETA ***}
(#
  do
     'Hello World!'->putLine
#)

Example from Wikipedia:

max: (#
    x, y, z: @integer
enter (x, y)
do
    (if x >= y // True then
        x -> z
    else
        y -> z
    if)
exit z
#)

Language features

Feature	Supported	Example	Token
Strings	✓	'Hello world'	'
Comments	✓	// A comment
Line Comments	✓	// A comment	//
Semantic Indentation	X