An warware: math.random tsakanin 1 zuwa 10

Ƙididdigar ƙididdige lambobi na iya zama babban ɓangaren aikace-aikace da yawa, musamman a cikin ci gaban wasa, ƙirar ƙididdiga, da kwaikwaya. Harshen shirye-shiryen Java yana ba da aikin ginannen aiki don samar da irin waɗannan lambobin bazuwar. Aiki ɗaya shine Math.random(), kodayake yana haifar da ƙima biyu tsakanin 0.0 (haɗe) da 1.0 (keɓe). Don samar da adadin bazuwar tsakanin kewayon kewayon kamar 1 zuwa 10, ana buƙatar ƙarin matakai. Wannan labarin yana zurfafa cikin ƙirƙirar lambobi tsakanin 1 da 10 a Java ta amfani da Math.random().

Ƙirƙirar Lambobin Random tare da Math.random()

Aikin Java's Math.random() yana dawo da ingantaccen ƙima biyu wanda ya fi ko daidai da 0.0 kuma ƙasa da 1.0. Wadannan dabi'un ana samar da su ne ba da gangan ba, ma'ana cewa tsararrakinsu suna bin takamaiman algorithm amma suna bayyana bazuwar ga mai amfani.

double randomValue = Math.random();

Koyaya, don samar da lamba tsakanin 1 da 10, ba za mu iya yin amfani da Math.random() kai tsaye ba. Madadin haka, muna buƙatar sarrafa ƙimar ninki biyu da Math.random() ya dawo.

Hanyar Samar da Integers Bazuwar Tsakanin 1 da 10

Don yin kwatankwacin ƙirƙirar lambar bazuwar tsakanin 1 da 10, za mu ninka sakamakon Math.random() da 10, ƙara 1, sannan mu jefa sakamakon zuwa lamba (saboda Math.random() ya dawo sau biyu) . Yin jifa zuwa lamba yana yanke juzu'i na decimal, ta haka yana ba mu ƙimar lamba.

int randomInteger = (int)(Math.random() * 10 + 1);

Wannan lambar tana aiki ne saboda Math.random() yana ba da ƙima daga 0.0 zuwa ƙasa da 1.0. Lokacin da kuka ninka wannan ta 10, yana shimfiɗa kewayon zuwa 0.0 zuwa ƙasa da 10.0. Ƙara 1 yana canza wannan kewayon har ya zama daga 1.0 zuwa kawai ƙasa da 11.0.

Rushewar mataki-mataki

Bari mu zurfafa zurfafa cikin yadda lambar ke aiki:

1.

• Ana kiran aikin Math.random(), wanda ke dawo da pseudorandom ninki biyu fiye da ko daidai da 0.0 da ƙasa da 1.0.
• Ana ninka wannan ƙimar sau biyu ta 10. Yanzu ƙimar ninki biyu ta faɗi tsakanin 0.0 da 10.0, har yanzu ƙasa da 10.0.
• Mun ƙara 1 zuwa sakamakon. Ƙimar ninki biyu yanzu tsakanin 1.0 da 11.0, har yanzu ƙasa da 11.0.
• A ƙarshe, muna yin nau'in simintin gyare-gyare don canza sau biyu zuwa lamba. Wannan yana yanke sashin goma kuma muna samun lamba tsakanin 1 da 10.

Dakunan karatu da Ayyuka masu alaƙa da Ƙirƙirar Lamba bazuwar

Baya ga Math.random(), Java yana ba da wasu hanyoyi don samar da lambobi bazuwar kamar su Random class da ThreadLocalRandom class. Ajin Random yana ba da hanyoyi don samar da lambobi masu ƙima iri daban-daban, kamar int, biyu, dogaye, iyo, Boolean, da sauransu. Ajin Zauren Random yana ba da hanyoyin samar da lambobi masu ƙima a ƙarƙashin yanayi na lokaci guda.

Ayyukan da aka gina a cikin Java da azuzuwan suna ba da cikakkiyar mafita don ƙirƙirar lambobi bazuwar, biyan buƙatu da aikace-aikace iri-iri.