Smalltalk and Object Orientation: an Introduction - Free

Preface
1. INTRODUCTION TO OBJECT ORIENTATION..................................................................15
1.1 INTRODUCTION ......................................................................................................................15
1.2 PROGRAMMING PARADIGMS...................................................................................................15
1.3 REVOLUTION VERSUS EVOLUTION..........................................................................................16
1.4 HISTORY /PEDIGREE OF OBJECT ORIENTED LANGUAGES .........................................................17
1.5 FUNDAMENTALS OF OBJECT ORIENTATION.............................................................................18
1.6 THE FOUR CATECHISM OF OBJECT ORIENTATION ....................................................................18
1.7 ENCAPSULATION....................................................................................................................19
1.8 INHERITANCE.........................................................................................................................20
1.9 ABSTRACTION........................................................................................................................22
1.10 POLYMORPHISM.....................................................................................................................22
1.11 SUMMARY..............................................................................................................................23
1.12 FURTHER READING.................................................................................................................24
2. ELEMENTS OF OBJECT ORIENTATION ...........................................................................25
2.1 INTRODUCTION ......................................................................................................................25
2.2 TERMINOLOGY.......................................................................................................................25
2.3 TYPES OF HIERARCHIES IN OBJECT ORIENTATION ...................................................................26
2.4 WHY BOTHER?.......................................................................................................................28
2.5 THE MOVE TO OBJECT TECHNOLOGY......................................................................................32
2.6 SUMMARY..............................................................................................................................32
2.7 EXERCISES.............................................................................................................................33
2.8 FURTHER READING.................................................................................................................33
3. CONSTRUCTING AN OBJECT ORIENTED SYSTEM .......................................................34
3.1 INTRODUCTION ......................................................................................................................34
3.2 THE APPLICATION: WINDSCREEN WIPE SIMULATION ...............................................................34
3.3 WHERE DO WE START?...........................................................................................................35
3.4 IDENTIFYING THE OBJECTS.....................................................................................................35
3.5 IDENTIFYING THE SERVICES/METHODS ...................................................................................36
3.6 REFINING THE OBJECTS ..........................................................................................................37
3.7 BRINGING IT ALL TOGETHER...................................................................................................37
3.8 SUMMARY..............................................................................................................................41
3.9 EXERCISES.............................................................................................................................41
3.10 FURTHER READING.................................................................................................................41
4. AN INTRODUCTION TO SMALLTALK...............................................................................44
4.1 INTRODUCTION ......................................................................................................................44
4.2 WHAT IS SMALLTALK.............................................................................................................44
4.3 OBJECTS IN SMALLTALK ........................................................................................................45
4.4 HISTORY ................................................................................................................................45
4.5 THE SMALLTALK ENVIRONMENT............................................................................................47
4.6 FURTHER READING.................................................................................................................52
5. A LITTLE SMALLTALK..........................................................................................................53
5.1 INTRODUCTION ......................................................................................................................53
5.2 THE WORKSPACE...................................................................................................................53
5.3 INSPECTORS ...........................................................................................................................54
5.4 NOTIFIERS..............................................................................................................................54
5.5 ERROR PROCESSING ...............................................................................................................55
5.6 SOME SMALLTALK .................................................................................................................56
5.7 WORKING WITH SMALLTALK..................................................................................................57
5.8 SUMMARY..............................................................................................................................60
5.9 FURTHER READING.................................................................................................................60
6. SMALLTALK BUILDING BLOCKS.......................................................................................61
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