ch4

٥٩ ‫ا‬ ‫ا‬ ‫ا‬ ‫ا‬ ‫ا‬ (Introduction to Object Oriented Programming (OOP)) ‫ﺍﻷﻫﺩﺍﻑ‬: ‫ﺒﻨﻬﺎﻴﺔ‬‫ﺒﺈﻤﻜﺎﻨﻙ‬ ‫ﺴﻴﻜﻭﻥ‬ ‫ﺍﻝﻔﺼل‬ ‫ﻫﺫﺍ‬: -‫ﺍﻝﻜﺎﺌﻥ‬ ‫ﻤﻔﻬﻭﻡ‬ ‫ﺘﺤﺩﻴﺩ‬(Object)‫ﻓﻰ‬‫ﺍﻝﺒﺭﻤﺠﺔ‬‫ﺍﻝﺸﻴﺌﻴﺔ‬. -‫ﺒﻴﻥ‬ ‫ﺍﻝﻔﺭﻕ‬ ‫ﻤﻌﺭﻓﺔ‬‫ﺍﻝﻜﺎﺌﻥ‬(Object)‫ﻭﺍﻝﺨﺎﺼﻴﺔ‬(Property)‫ﻭﺍﻝﻭﺴﻴﻠﺔ‬... More

٥٩ ‫ا‬ ‫ا‬ ‫ا‬ ‫ا‬ ‫ا‬ (Introduction to Object Oriented Programming (OOP)) ‫ﺍﻷﻫﺩﺍﻑ‬: ‫ﺒﻨﻬﺎﻴﺔ‬‫ﺒﺈﻤﻜﺎﻨﻙ‬ ‫ﺴﻴﻜﻭﻥ‬ ‫ﺍﻝﻔﺼل‬ ‫ﻫﺫﺍ‬: -‫ﺍﻝﻜﺎﺌﻥ‬ ‫ﻤﻔﻬﻭﻡ‬ ‫ﺘﺤﺩﻴﺩ‬(Object)‫ﻓﻰ‬‫ﺍﻝﺒﺭﻤﺠﺔ‬‫ﺍﻝﺸﻴﺌﻴﺔ‬. -‫ﺒﻴﻥ‬ ‫ﺍﻝﻔﺭﻕ‬ ‫ﻤﻌﺭﻓﺔ‬‫ﺍﻝﻜﺎﺌﻥ‬(Object)‫ﻭﺍﻝﺨﺎﺼﻴﺔ‬(Property)‫ﻭﺍﻝﻭﺴﻴﻠﺔ‬ (Method)‫ﺍﻝﺤﺩﺙ‬ ‫ﻭ‬(Event)‫ﺃﻭ‬ ‫ﺍﻝﺘﺼﻨﻴﻑ‬ ‫ﻭ‬‫ﺍﻝﻔﺌﺔ‬(Class). -‫ﺍﻝﺘﻐﻠﻴﻑ‬ ‫ﺒﻴﻥ‬ ‫ﺍﻝﻔﺭﻕ‬ ‫ﻤﻌﺭﻓﺔ‬(Encapsulation)‫ﺍﻝﺘﻭﺭﻴﺙ‬ ‫ﻭ‬(Inheritance). ٤-١‫ﻤﻘﺩﻤــ‬‫ﺔ‬: ‫ﺤﺘﻰ‬ ‫ﺘﻁﻭﻴﺭﻫﺎ‬ ‫ﺘﻡ‬ ‫ﺍﻝﺘﻰ‬ ‫ﺍﻝﺒﺭﻤﺠﺔ‬ ‫ﻝﻐﺎﺕ‬ ‫ﺘﺘﻌﺩﺩ‬‫ﺍﻝﻴﻭﻡ‬. ‫ﺘﻌﺩ‬ ‫ﺍﻝﻠﻐﺎﺕ‬ ‫ﻫﺫﻩ‬ ‫ﻤﻥ‬ ‫ﻭﺍﺤﺩﺓ‬ ‫ﻭﻜل‬ ‫ﺃﺠﻠ‬ ‫ﻤﻥ‬ ‫ﻴﺘﻡ‬ ‫ﺍﻝﺫﻱ‬ ‫ﺍﻝﺘﻁﺒﻴﻕ‬ ‫ﻁﺒﻴﻌﺔ‬ ‫ﺤﺴﺏ‬ ‫ﻏﻴﺭﻫﺎ‬ ‫ﻤﻥ‬ ‫ﺃﻜﺘﺭ‬ ‫ﻤﻨﺎﺴﺒﺔ‬‫ﻪ‬‫ﻝﻐﺎﺕ‬ ‫ﻓﻬﻨﺎﻙ‬ ‫ﺍﻝﺒﺭﻨﺎﻤﺞ‬ ‫ﻜﺘﺎﺒﺔ‬ ‫ﺍﻝﻬﻨﺩﺴﻴﺔ‬ ‫ﺍﻝﺘﻁﺒﻴﻘﺎﺕ‬ ‫ﺘﻨﺎﺴﺏ‬،‫ﻭﻫﻜﺫﺍ‬ ‫ﺍﻝﺘﺠﺎﺭﻴﺔ‬ ‫ﺍﻝﺘﻁﺒﻴﻘﺎﺕ‬ ‫ﺘﻨﺎﺴﺏ‬ ‫ﻭﺃﺨﺭﻯ‬. ‫ﺍﻝﻤﺸﺘﺭﻜﺔ‬ ‫ﺍﻝﺴﻤﺔ‬ ‫ﻭﻝﻜﻥ‬ ‫ﺍﻝﻠﻐﺎ‬ ‫ﻫﺫﻩ‬ ‫ﻝﻤﻌﻅﻡ‬‫ﺕ‬‫ﻤﺜل‬)BASIC , FORTRAN , PASCAL , COBOL, C(‫ﺘﺴﺘﺨﺩﻡ‬ ‫ﺇﻨﻬﺎ‬ ‫ﻫﻭ‬ ‫ﻝﻠﺒﺭﻤﺠﺔ‬ ‫ﺍﻝﺘﻘﻠﻴﺩﻱ‬ ‫ﺍﻷﺴﻠﻭﺏ‬. ‫ﺍﻷﻭﺍﻤﺭ‬ ‫ﺘﻨﻔﻴﺫ‬ ‫ﻝﺘﺭﺘﻴﺏ‬ ‫ﺍﻝﺩﻗﻴﻕ‬ ‫ﺍﻝﺘﺤﺩﻴﺩ‬ ‫ﻋﻠﻰ‬ ‫ﻴﻌﺘﻤﺩ‬ ‫ﺍﻷﺴﻠﻭﺏ‬ ‫ﻭﻫﺫﺍ‬ ‫ﺍﻝﻌﻤﻠﻴﺎﺕ‬ ‫ﻭﺇﺠﺭﺍﺀ‬. ‫ﺍﻝﺒﺭﻨﺎﻤﺞ‬ ‫ﻤﺸﻐل‬ ‫ﻴﺭﻴﺩﻩ‬ ‫ﻝﻤﺎ‬ ‫ﻜﺎﺴﺘﺠﺎﺒﺔ‬ ‫ﻋﻤﻠﺔ‬ ‫ﻴﻨﺒﻐﻲ‬ ‫ﻤﺎ Less