Uhlelo luqala impilo yalo njengekhodi yomthombo, ebhalwe ngolimi lokuhlela olufana ne-Java. Le khodi isethi yemiyalelo okufanele ilandelwe ikhompuyutha, futhi kukumhleli wohlelo ukuthi akhe ikhodi ngendlela yokuthi afinyelele umgomo ohlosiwe. Ukukhombisa le nqubo, ake sicabangele inkinga yesibonelo: ukuthola isamba sezinombolo ezimbili.
Isixazululo Senkinga
Ukuze sixazulule le nkinga, sizobhala uhlelo olulula lwe-Java olwamukela izinombolo ezimbili njengokufaka bese libuyisela isamba sazo. Ikhodi ibukeka kanje:
public class SumCalculator { public static int addNumbers(int a, int b) { return a + b; } public static void main(String[] args) { int number1 = 5; int number2 = 7; int sum = addNumbers(number1, number2); System.out.println("The sum of " + number1 + " and " + number2 + " is " + sum + "."); } }
Isinyathelo ngesinyathelo Incazelo
1. Siqale sichaze a I-SumCalculator yekilasi lomphakathi. Lokhu kusebenza njengepulani yohlelo lwethu futhi kusivumela ukuthi sichaze izindlela ezidingekayo neziguquguqukayo.
2. Ngaphakathi ekilasini, sichaza a indlela emile yomphakathi addNumbers. Le ndlela ithatha izinombolo ezimbili njengama-agumenti futhi ibuyisela isamba sawo. Indlela yamukela amapharamitha wokufaka amabili, 'a' kanye no-'b', futhi ibala isamba isebenzisa isisho esithi 'a + b'. Ibe isibuyisela umphumela.
3. Sibe sesichaza i indlela eyinhloko, okusebenza njengendawo yokungena yohlelo lwethu. I-Java Virtual Machine (JVM) ibheka indlela eyinhloko yokuqala ukusebenzisa ikhodi.
4. Ngaphakathi kwendlela eyinhloko, sichaza izinombolo ezimbili eziguquguqukayo `inombolo1` kanye `nenombolo2`, futhi siwanikeze amanani 5 kanye no-7, ngokulandelanayo.
5. Okulandelayo, sibiza indlela echazwe ngaphambilini ethi `addNumbers()`, sidlulise `inombolo1` kanye `nenombolo2` njengezimpikiswano. Indlela ibuyisela isamba, esisigcina kokuhlukile `isamba`.
6. Ekugcineni, sisebenzisa i- I-System.out.println() indlela yokuphrinta umphumela kukhonsoli.
Imitapo yolwazi ye-Java kanye nemisebenzi
Ukuze kuxazululwe izinkinga eziyinkimbinkimbi, kuvame ukusiza ukusebenzisa imitapo yolwazi ekhona kanye nemisebenzi. E-Java, kunemitapo yolwazi eminingi eyakhelwe ngaphakathi kanye namakilasi angasetshenziswa ukwenza imisebenzi eyahlukene ngempumelelo nangempumelelo. Eminye imitapo yolwazi ewusizo yilena:
- i-java - Lona umtapo wezincwadi oqukethe amakilasi ezinsiza ahlukahlukene kanye nezindawo zokusebenzelana, njengamaqoqo, izinsuku nesikhathi, nokukhiqizwa kwezinombolo okungahleliwe.
- java.io - Lo mtapo wezincwadi wenza abasebenzisi bakwazi ukwenza imisebenzi yokufaka, njengokufunda nokubhala amafayela.
- java.math - Lo mtapo wolwazi uhlinzeka ngemisebenzi yezibalo ethuthukisiwe, okuhlanganisa i-BigInteger ne-BigDecimal ukuze uthole izibalo ezinembile ngokunganaki.
Esibonelweni esinikeziwe, umsebenzi we-System.out.println() uyingxenye yephakheji ye-java.io, engena ngaphansi Kwelabhulali Yekilasi Le-Java evamile. Kuyasiza ekwenzeni imisebenzi yokukhipha okokufaka okusekelwe kukhonsoli.
Sithemba ukuthi lesi sihloko sikunikeze ukuqonda okungcono kohambo oluthathwa uhlelo, kusukela ekuqaleni njengekhodi yomthombo kuya ekufinyeleleni esigabeni sokugcina sokwenza. Izingxenye ezihlukene zekhodi, njengemitapo yolwazi nemisebenzi, zidlala indima ebalulekile ekwakheni uhlelo olubumbene nolusebenza kahle. Ngokuqonda lezi zindlela, abathuthukisi bangacija kangcono amakhono abo wokuhlela futhi bakhiqize isofthiwe ehlangabezana nemigomo efiselekayo kanye nokulindelweyo.