Ukunciphisa Isamba kuyinkinga evamile onjiniyela abaningi kanye nabashisekeli bohlelo ababhekana nayo. Kudinga ukuqonda okuyisisekelo kwemiqondo yokuhlela. Nakuba i-Java inikeza izindlela ezihlukahlukene zokuxazulula le nkinga, isengaba umsebenzi odidayo kwabanye. Kulesi sihloko, sizocubungula esinye sezixazululo ezisebenza kahle kakhulu zenkinga ye-Reduce Sum ku-Java, sichaza ingxenye ngayinye yekhodi isinyathelo ngesinyathelo, ngaleyo ndlela siyenze iqondakale kalula nakubaqalayo.
Yehlisa Inkinga Yesamba
Inkinga yokunciphisa isamba empeleni ifinyelela ekufingeni izinombolo ngokusakaza kwezinombolo. Inkinga ingaba nokuhlukahluka okuhlukile. Kungaba izici ezifingqayo zelungu elifanayo, izici Zohlu Oluxhunyiwe noma izici ezifingqayo Zokusakaza endaweni enezintambo eziningi esebenzisa umsebenzi othi `stream.reduce()`. Isebenzisa izinkulumo ze-lambda nezindawo zokusebenza, okuyizici ezibalulekile ze-Java 8 nangaphezulu.
Isixazululo seJava
I-Java ihlinzeka ngamalabhulali nemisebenzi ukuze iphathe futhi ixazulule inkinga kalula. Sizobe sisebenzisa i-Stream API eyethulwa ku-Java 8. Ikakhulukazi, indlela ethi `reduce()` ehlanganisa izici zokusakaza ukuze kukhiqizwe umphumela owodwa wesifinyezo.
Nali isampula lekhodi ye-Java yokwenza kanjalo.
public int sumOfArray(Integer[] numbers) {
return Arrays.stream(numbers)
.reduce(0, Integer::sum);
}
Incazelo yesinyathelo ngesinyathelo yeKhodi
Ikhodi engenhla imele indlela ethatha izinombolo eziningi njenge-agumenti futhi ibuyisele isamba lala manani.
- Okokuqala, `I-Arrays.stream(izinombolo)` iguqula amalungu afanayo abe Ukusakaza.
- Indlela ethi `nciphisa()` ibe isibizwa kulokhu kusakaza. Le ndlela ithatha amapharamitha amabili: inani lokuqala lesamba kanye nendlela okufanele isetshenziswe ekubaleni isamba.
- Inani lokuqala kuleli cala lihlelwe ngokuthi ‘0’ futhi indlela esetshenzisiwe ithi `Inani eliphelele::samba`. I-`Integer::sum` iyireferensi yendlela emile `isamba` ekilasini Eliphelele. Le ndlela ibuyisela isamba sezimpikiswano zayo. Idluliselwa njengendlela yokubhekisela endleleni yokunciphisa.
- Umsebenzi ``nciphisa()` ube usuwenza umsebenzi wesamba kwinto ngayinye ekusakazweni bese inani liyabuyiswa njengomphumela womsebenzi.
Imitapo yolwazi ye-Java kanye Nemisebenzi efanayo
I-Java inikezela ngohlu olubanzi lwamalabhulali angakusiza ukuthi ulawule futhi usebenze ekusakazeni. Imisebenzi efanayo okumele `incishiswe` ihlanganisa `ukuqoqa`, `ukubala`, `fanisa`, `thola`, `phinda` phakathi kokunye, ngokusekelwe kulokho okumelwe kwenziwe ekusakazweni.
Ngalo mfanekiso, siyakwazi ukubona ukuthi i-Java inikeza amathuluzi anamandla futhi aguquguqukayo okuxazulula izinkinga eziyinkimbinkimbi, njengenkinga yokunciphisa isamba. Kuwubufakazi bokuhlukahluka nokuqina kolimi.
