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This

This həmin anda hansı obyekt üzərində iş gedirsə,həmin obyektin
referansin qaytarır.
Bu açar söz nələrə xidmət edir,ona baxaq.

This əsasən 2 məqsədlə işlədilə bilər.




1.İlk olaraq kodlama edərkən ad toqquşması baş verdikdə.Nümunəylə
nə demək istədiyimə baxaq.


  İlkin Abdullayev                                                1
This




İlkin Abdullayev          3
This
Görüldüyü kimi metod içindəki lokal dəyişənlə sinfin içindəki qlobal
dəyişən adı toqquşur.Kod yazdığımda hansı dəyişəni çağırdığımı kompil-
yatoru başa salmaq üçün this istifadə edəcik.




 İlkin Abdullayev                                                  4
This




Görüldüyü kimi qlobal dəyişəni çağırmaq üçün this.ad yazıldı.
Bayaq qeyd etmişdik ki,this həmin andakı obyektin referansın qay-
tarır.Ona görə this yazıb nöqtə ilə a qlobal dəyişənini çağıra bilirik.




İlkin Abdullayev                                                          5
This
2.This açar sözündən həm də konstruktordan digər konstruktorları
çağırmaq üçün istifadə olunur




  İlkin Abdullayev                                                 5
This
  Nəticə:




İlkin Abdullayev          6
This
This yazıldıqda ən birinci kod sətrində yazılmalıdı(Konstruktor çağrıldıqda)




  İlkin Abdullayev                                                     7
This
Thisin bu istifadəsiylə ola biləcək bir xətaya da baxaq




İlkin Abdullayev                                          8
This



Burda səhv nədən ola bilər?Əsas metodda obyekt yaradıldı,tək para-
metrli konstruktor işə düşdü.Tək parametrli konstruktor 2 parametrli
olan konstruktoru çağırdı.Və 2 parametrli tək parametrliyi,tək parametrli
yenə 2 parametrliyi çağırır və dövrü olaraq bu dəvam edəcək.Buna görə
xəta görünür.




  İlkin Abdullayev                                                   9
This




Yazdığımız metod ThisAnlayisi adli bir tip qaytarir.This referansı(həmin
anda iş görülən obyektin)qaytardığından metodun qaytardığı tip olaraq
returndə this yaza bilərik.


  İlkin Abdullayev                                                    10

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This nədir?

  • 1. This This həmin anda hansı obyekt üzərində iş gedirsə,həmin obyektin referansin qaytarır. Bu açar söz nələrə xidmət edir,ona baxaq. This əsasən 2 məqsədlə işlədilə bilər. 1.İlk olaraq kodlama edərkən ad toqquşması baş verdikdə.Nümunəylə nə demək istədiyimə baxaq. İlkin Abdullayev 1
  • 3. This Görüldüyü kimi metod içindəki lokal dəyişənlə sinfin içindəki qlobal dəyişən adı toqquşur.Kod yazdığımda hansı dəyişəni çağırdığımı kompil- yatoru başa salmaq üçün this istifadə edəcik. İlkin Abdullayev 4
  • 4. This Görüldüyü kimi qlobal dəyişəni çağırmaq üçün this.ad yazıldı. Bayaq qeyd etmişdik ki,this həmin andakı obyektin referansın qay- tarır.Ona görə this yazıb nöqtə ilə a qlobal dəyişənini çağıra bilirik. İlkin Abdullayev 5
  • 5. This 2.This açar sözündən həm də konstruktordan digər konstruktorları çağırmaq üçün istifadə olunur İlkin Abdullayev 5
  • 6. This Nəticə: İlkin Abdullayev 6
  • 7. This This yazıldıqda ən birinci kod sətrində yazılmalıdı(Konstruktor çağrıldıqda) İlkin Abdullayev 7
  • 8. This Thisin bu istifadəsiylə ola biləcək bir xətaya da baxaq İlkin Abdullayev 8
  • 9. This Burda səhv nədən ola bilər?Əsas metodda obyekt yaradıldı,tək para- metrli konstruktor işə düşdü.Tək parametrli konstruktor 2 parametrli olan konstruktoru çağırdı.Və 2 parametrli tək parametrliyi,tək parametrli yenə 2 parametrliyi çağırır və dövrü olaraq bu dəvam edəcək.Buna görə xəta görünür. İlkin Abdullayev 9
  • 10. This Yazdığımız metod ThisAnlayisi adli bir tip qaytarir.This referansı(həmin anda iş görülən obyektin)qaytardığından metodun qaytardığı tip olaraq returndə this yaza bilərik. İlkin Abdullayev 10