Day 2

The Smalltalk Environment

•           Virtual Machines and images
•           Object lifetimes and garbage collection
•           Applications [extending classes]
•           Envy (basics of method and class editioning)
•           System Transcript
•           Tools (finding senders, receivers etc.)
•           Browsers (Class, Application etc)
•           Inspectors
•           Walkbacks [Debugger]

 Design Basics

•           Message send chains
•           Object lazyness
•           Responsibility
•           Composition vs Inheritance

 Building Methods (Case Study)

•                 Implementing the methods defined in Day 1
•                 using categories to show interfaces

 Metaclasses and Reflection

•                 the classes Class and Behaviour
•                 #perform: and selectors

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