Object-Oriented Programming Basics with Smalltalk

Transcript

1. SMALLTALK OBJECT-ORIENTED PROGRAMMING BASICS

2. @statonjr OOP Basics with Smalltalk 100 Dealerships 10,000+ Employees

3. @statonjr OOP Basics with Smalltalk OVERVIEW

4. @statonjr OOP Basics with Smalltalk What is OBJECT-ORIENTED PROGRAMMING?

5. None

6. @statonjr OOP Basics with Smalltalk 1966

7. @statonjr OOP Basics with Smalltalk 1970

8. @statonjr OOP Basics with Smalltalk 1972

9. @statonjr OOP Basics with Smalltalk Six Main Ideas of Smalltalk

10. @statonjr OOP Basics with Smalltalk Everything is an object

11. @statonjr OOP Basics with Smalltalk Objects communicate by sending and

    receiving messages

12. @statonjr OOP Basics with Smalltalk Objects have their own memory

13. @statonjr OOP Basics with Smalltalk Every object is an instance

    of a class

14. @statonjr OOP Basics with Smalltalk The class holds the shared

    behavior for its instances

15. @statonjr OOP Basics with Smalltalk To eval a program list,

    control is passed to the first object and the remainder is treated as its message

16. @statonjr OOP Basics with Smalltalk 1976

17. @statonjr OOP Basics with Smalltalk

18. @statonjr OOP Basics with Smalltalk Everything is an object

19. @statonjr OOP Basics with Smalltalk Data Code

20. @statonjr OOP Basics with Smalltalk Data Code Methods

21. @statonjr OOP Basics with Smalltalk Data Code Methods Variables

22. GENERALLY, WE DON'T WANT THE PROGRAMMER TO BE MESSING AROUND

    WITH STATE, WHETHER SIMULATED OR NOT. Alan Kay THE EARLY HISTORY OF SMALLTALK

23. @statonjr OOP Basics with Smalltalk Objects communicate by sending and

    receiving messages

24. @statonjr OOP Basics with Smalltalk SENDER RECEIVER Message Return Value

25. @statonjr OOP Basics with Smalltalk Every object is an instance

    of a class

26. @statonjr OOP Basics with Smalltalk Class Instances

27. @statonjr OOP Basics with Smalltalk Class Instance Class Methods Class

    Variables Instance Methods Instance Variables Instance Methods Instance Variables

28. @statonjr OOP Basics with Smalltalk The class holds the shared

    behavior for its instances

29. @statonjr OOP Basics with Smalltalk COMPOSITION

30. @statonjr OOP Basics with Smalltalk INHERITANCE

31. @statonjr OOP Basics with Smalltalk name age grade Person Student

32. @statonjr OOP Basics with Smalltalk POLYMORPHISM

33. @statonjr OOP Basics with Smalltalk SMALLTALK SYNTAX

34. @statonjr OOP Basics with Smalltalk SMALLTALK SYNTAX

35. @statonjr OOP Basics with Smalltalk SMALLTALK SYNTAX Tokens: Identifiers, Numbers,

    ‘Strings’, “Comments”, Binary Operators, Keywords, Special Tokens

36. @statonjr OOP Basics with Smalltalk SMALLTALK SYNTAX Special Tokens: #:^’|”;()[]

    Tokens: Identifiers, Numbers, ‘Strings’, “Comments”, Binary Operators, Keywords, Special Tokens

37. @statonjr OOP Basics with Smalltalk SMALLTALK SYNTAX Special Tokens: #:^’|”;()[]

    Tokens: Identifiers, Numbers, ‘Strings’, “Comments”, Binary Operators, Keywords, Special Tokens Reserved Words: nil false true self super

38. @statonjr OOP Basics with Smalltalk SMALLTALK SYNTAX Special Tokens: #:^’|”;()[]

    Tokens: Identifiers, Numbers, ‘Strings’, “Comments”, Binary Operators, Keywords, Special Tokens Reserved Words: nil false true self super Syntactic Forms: Unary messages, Binary messages, Keyword messages, Block closures, Return Value, Method definition, Assignment, Cascade

39. @statonjr OOP Basics with Smalltalk DEMO

40. @statonjr OOP Basics with Smalltalk RESOURCES http://pharo.org http://pharobyexample.org Smalltalk-80: The

    Language and Its Implementation http://files.pharo.org/books/ ProfStef go