Unary messages Binary messages Keyword messages Message precedence Cascade operator Temporary variables Assignment := Symbols Arrays Literal dictionaries

Block literals Block parameters value value: ifTrue:ifFalse: ifNil:ifNotNil: whileTrue: timesRepeat: to:do: ensure:

Class definition Instance variables Class variables Instance method Class-side method self super Method categories initialize Accessors

OrderedCollection Array Set Dictionary collect: select: reject: inject:into: detect:ifNone: do:

String concatenation String streams asString format: Integer arithmetic Fractions Float arithmetic Random Intervals Character testing

Error signal on:do: ensure: cleanup ifCurtailed: Halt Assertion ZeroDivide handling File stream Read stream Write stream

class respondsTo: perform: perform:with: selectors allInstVarNames methodDictionary CompiledMethod lookup doesNotUnderstand: become:

TestCase subclass setUp tearDown assert: deny: should:raise: Value objects Delegation Polymorphic dispatch Dependency injection