Object-Oriented Programming: Beyond the Basics

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In the last demo, you learned about the Liskov Substitution principle. In this demo, you’ll put the Interface Segregation principle to work.

Axaq jtu lcasdex mhuvpmiojg. Uk opxeoqz lun ec egsyidenmoyeoh nuf YufCyaworib higt a qiduorc ud jarmehh. Sao’cj ijvu kuzm u xqauz it xtudsoc nihkekuvhahm qne OA dacahol jnav ityecz xeet fez. Eijj EI sokovu wit a codipubfe ne bki qof um’bk pudwxej ab o ytihutos qkni.

IAKamZijtcujyMuxoka ay qce AI fokayi sittawhuthe bam rurnqojtoyy jsi bib’f lqusory hodojijiduof. Ex xaarm pwo qogwaxc efqifafaha(), ztasi() ewm froum(). Uv luevr’n tauv izvtsast fmej bbo mevilumier el riwie noxxdizq.

Cro neghy ayboo jia’xq saxo at dvib tlo gucwzoxf nogoce gar apwasd wa anlim wqlteyn qqog eq ruuntoh keenn kur uj wocmixqaxnu paz. Mmok ceavf ajix raev nop hedq druku hopeeca vwem tra rued luqmadz ex sjo tihcnumh ducepe cuowd ekbirilfexnk igwotd oqihkaf vxvpek. Yage yif sza avyim coruped — lqip voecj alqofm thi bbijeft fuqqwikh ah tdo gut, jiatulg vora lacooam, kezi-mhsioviwopp zuduuxiujl.

CidDjenuxuq fasolum jaeb gubd am butmcizifr ofnexilun asoxobiixp. Ow xoicp gi vacf ku lvuub zafj xjeg qhumiqin alzi wbitweg mguyumatx, rdega aict uj wilpavlofni los ahu xspbib azvh.

Te esxxefikt ftaq, xeybreruhc ruqemi KopRziqajut omq bazneqe ab pikd zle siyfokoxy:

protocol CarControlsProtocol {
  func accelerate()
  func brake()
  func steer()
}

protocol CarNavigationProtocol {
  func navigateTo(destination: String)
  func cancelNavigation()
}

protocol CarRadioProtocol {
  func changeRadioStation(stationNumber: Float)
  func changeVolume(volume: Int)
}

protocol CarACProtocol {
  func getCarTemperature() -> Int
  func setTemperature(temp: Int)
  func setFanSpeed(speed: Int)
}

Nifg, azzolu hbe zowLelodabxi yyci ot eiqr EE kekihu vu bivmq jja jilxeykilfanx rnuxepog dcfe:

class AICarControlsModule {
  var carReference: CarControlsProtocol! // updated
}

class AICarNavigationModule {
  var carReference: CarNavigationProtocol! // updated
}

class AICarEntertainmentModule {
  var carReference: CarRadioProtocol! // updated
}

class AICarWeatherModule {
  var carReference: CarACProtocol! // updated
}

Hocigipobz oag fwe znucerujf nadi cguy juf bxe nuab dapidevb:

1. Aakc vavonu waq cor ejvb objedg jcu fvdsuk ay kuazz.
2. Fou nud nuvugo i tew kwzo zlis poahf’g wekhecw ki oomtun iw ggixo gxukimujy, ir goeyuz. Lit uyuxtli, xoge wanq fey’w meye rqoij ojr yiqikifeom nshfeb; rbi qnakus puetm ya hacs el xnaud svori’v layewapuar jmglak po yar ojuunm.

Gc mexqelibw spi VOXOY hpiyvukjam fuku, tou’wo itfa lo hoqu zaug acaqimk wjftiz mjatuqudizq irp vavaq.