Electronica-ICT
OBJECT ORIENTED
PROGRAMMING
Float like a butterfly, see sharp like an eagle
,Object Oriented Programming Elektronica-ICT
Inhoudstabel
Voorwoord ....................................................................................................................... 3
H1: Klassen en objecten .................................................................................................... 4
1.1 OOP Introductie............................................................................................................................. 4
1.2 Klassen en objecten in C# .............................................................................................................. 4
1.3 Methoden en acces modifiers ....................................................................................................... 4
1.4 Properties ...................................................................................................................................... 5
H2: Geheugenmanagement bij klassen .............................................................................. 7
2.1 Objecten en methoden ................................................................................................................. 7
2.2 Stack en Heap ................................................................................................................................ 7
2.3 Null en NullReferenceException .................................................................................................... 8
H3: Advanced klassen en objecten .................................................................................... 9
3.1 Default contructors ....................................................................................................................... 9
3.2 Object Initializer Syntax ................................................................................................................. 9
3.3 Static ............................................................................................................................................ 10
H4: Arrays en klassen ...................................................................................................... 10
4.1 Arrays van objecten ..................................................................................................................... 10
4.2 Foreach en var ............................................................................................................................. 11
4.3 List ............................................................................................................................................... 11
4.4 Dictionary .................................................................................................................................... 12
H5: Overerving................................................................................................................ 12
5.1 Introductie ................................................................................................................................... 12
5.2 Constructors bij overerving ......................................................................................................... 13
5.3 Virtual en override....................................................................................................................... 15
5.4 Base keyword .............................................................................................................................. 15
H6: Advanced overerving ................................................................................................ 15
6.1 System.Object.............................................................................................................................. 15
6.2 Abstract ....................................................................................................................................... 16
H7: Compositie ............................................................................................................... 17
7.1 Heeft-een relatie ......................................................................................................................... 17
7.2 Aanduiding................................................................................................................................... 17
7.3 In de praktijk ................................................................................................................................ 17
7.4 Heeft-meerdere relatie ............................................................................................................... 18
H8: Polymorfisme ........................................................................................................... 19
8.1 Introductie polymorfisme............................................................................................................ 19
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, Object Oriented Programming Elektronica-ICT
8.2 Is en As keywords ........................................................................................................................ 19
8.3 Objecten vergelijken: alles komt samen ..................................................................................... 20
H9: Interfaces ................................................................................................................. 21
9.1 Introductie interfaces .................................................................................................................. 21
9.2 Interfaces in de praktijk ............................................................................................................... 23
9.3 Final chapter: alles komt samen.................................................................................................. 23
APPENDIX: Basiskennis ................................................................................................... 26
Arrays................................................................................................................................................. 26
Strings ................................................................................................................................................ 27
APPENDIX: Git ................................................................................................................ 28
Inleiding ............................................................................................................................................. 28
File lifecycle ....................................................................................................................................... 28
Overzicht van werking ....................................................................................................................... 29
2
OBJECT ORIENTED
PROGRAMMING
Float like a butterfly, see sharp like an eagle
,Object Oriented Programming Elektronica-ICT
Inhoudstabel
Voorwoord ....................................................................................................................... 3
H1: Klassen en objecten .................................................................................................... 4
1.1 OOP Introductie............................................................................................................................. 4
1.2 Klassen en objecten in C# .............................................................................................................. 4
1.3 Methoden en acces modifiers ....................................................................................................... 4
1.4 Properties ...................................................................................................................................... 5
H2: Geheugenmanagement bij klassen .............................................................................. 7
2.1 Objecten en methoden ................................................................................................................. 7
2.2 Stack en Heap ................................................................................................................................ 7
2.3 Null en NullReferenceException .................................................................................................... 8
H3: Advanced klassen en objecten .................................................................................... 9
3.1 Default contructors ....................................................................................................................... 9
3.2 Object Initializer Syntax ................................................................................................................. 9
3.3 Static ............................................................................................................................................ 10
H4: Arrays en klassen ...................................................................................................... 10
4.1 Arrays van objecten ..................................................................................................................... 10
4.2 Foreach en var ............................................................................................................................. 11
4.3 List ............................................................................................................................................... 11
4.4 Dictionary .................................................................................................................................... 12
H5: Overerving................................................................................................................ 12
5.1 Introductie ................................................................................................................................... 12
5.2 Constructors bij overerving ......................................................................................................... 13
5.3 Virtual en override....................................................................................................................... 15
5.4 Base keyword .............................................................................................................................. 15
H6: Advanced overerving ................................................................................................ 15
6.1 System.Object.............................................................................................................................. 15
6.2 Abstract ....................................................................................................................................... 16
H7: Compositie ............................................................................................................... 17
7.1 Heeft-een relatie ......................................................................................................................... 17
7.2 Aanduiding................................................................................................................................... 17
7.3 In de praktijk ................................................................................................................................ 17
7.4 Heeft-meerdere relatie ............................................................................................................... 18
H8: Polymorfisme ........................................................................................................... 19
8.1 Introductie polymorfisme............................................................................................................ 19
1
, Object Oriented Programming Elektronica-ICT
8.2 Is en As keywords ........................................................................................................................ 19
8.3 Objecten vergelijken: alles komt samen ..................................................................................... 20
H9: Interfaces ................................................................................................................. 21
9.1 Introductie interfaces .................................................................................................................. 21
9.2 Interfaces in de praktijk ............................................................................................................... 23
9.3 Final chapter: alles komt samen.................................................................................................. 23
APPENDIX: Basiskennis ................................................................................................... 26
Arrays................................................................................................................................................. 26
Strings ................................................................................................................................................ 27
APPENDIX: Git ................................................................................................................ 28
Inleiding ............................................................................................................................................. 28
File lifecycle ....................................................................................................................................... 28
Overzicht van werking ....................................................................................................................... 29
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