How can i initialize and use class variables ?
Is initialize ever executed by the class ?

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initialize
 "Initialize the class variables"

 Transcript show: 'Initializing class WorldBouncer '; cr.
 CoeffDrag _ 0.03.
 Gravity _ 9.81.

 "WorldBouncer initialize."

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initialize
 "Initialize the instance"

 Transcript show: 'Initializing instance of WorldBouncer. Gravity: '; show:
Gravity; cr.
 "Why Gravity is nil ?"

kind regards
bokel