Smalltalk at: #TEMP put: OrderedCollection new!
TEMP add: '1'!
TEMP add: '2'!
TEMP add: '3'!
TEMP add: '!!'! "Exclamation marks in the Smalltalk code must be doubled to avoid being interpreted as the end of a code chunk"
Transcript cr; show: 'This message will not show up because the system is not fully initialized yet.'!
PostStartup!
Transcript cr; show: 'TEMP = ', TEMP printString!
Smalltalk removeKey: #TEMP!