Hello world

home₁ home₂
Bib
Algorithms
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FP
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and the
Book

File hello.hs

main = putStr "Hello world.\n" -- Haskell98 Hello world program

NB.	putStr :: String -> IO () putStrLn :: String -> IO () putChar :: Char -> IO ()

File hello02.hs
main = putStr "Hello " >> putStr "World" >> putStrLn "." -- Another Hello world: NB. The operator >> combines two (or more) IO actions

7/2002.

Coding Ockham's Razor, L. Allison, Springer

A Practical Introduction to Denotational Semantics, L. Allison, CUP

Linux
Ubuntu
free op. sys.
OpenOffice
free office suite
The GIMP
~ free photoshop
Firefox
web browser

Haskell:

(:)	cons
[x1,...]	list
[ ]	list
(++)	append
\	λ :-)
::	has type

Compared

© L. Allison http://www.allisons.org/ll/ (or as otherwise indicated),
Faculty of Information Technology (Clayton), Monash University, Australia 3800 (6/'05 was School of Computer Science and Software Engineering, Fac. Info. Tech., Monash University, was Department of Computer Science, Fac. Comp. & Info. Tech., '89 was Department of Computer Science, Fac. Sci., '68-'71 was Department of Information Science, Fac. Sci.)

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