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 home | syllabus | src | submit | chat | ©2019 by Tim Menzies

Beginner Smalltalk

This homework is optional and wills core you zero marks.

But it will get you started with Smalltalk.

On codeanywhere:

sudo apt-get update
sudo apt-get install gnu-smalltalk

Test it out

$ gst
GNU Smalltalk ready

st> 1+1.
2
st> control-d
$

Working!

Now split your environment into a shell (on left) and editor (on right). Edit the file st101

 #!/usr/bin/env gst
 
 "things in quotes are comments"
 
 Transcript nextPutAll: 1 printString; 
            cr " command are grouped by '!'"
 !
 
 ! Object methods !
 oo
   Transcript nextPutAll: self printString; 
              cr!
 !  
 
 | x y | "locals vars. live till next '!'"
 x := 1.
 y:=2.
 (x+y) oo  "should print 3"
 !
 
 "now go to 
  https://people.eecs.berkeley.edu/~fateman/264/papers/smalltalk-tutorial.html 
  and try the examples there in section 1 and 2"
 
 "e.g. 1.2"
 
 'Hello, world' oo!

Remember to chmod +x st101 before running it with

  ./st101