Java huānga. Huānga i roto i Java. Java mō tīmata

Ngohi (Eng. Ngohi) ko te taputapu kaha e taea ai e koe te mahi ki nui o ngā raraunga. Oia mau, ki te mahi koe i roto i tou waehere wahi e hiahia ana koe ki te whakaora i, mo te tauira, 100 ngā uara, ka mahi i te iti rawa he ta'efakapotopoto mo te taua maha o ngā taurangi tenei. He ngohi taea ki te rokiroki koe he maha nui o ngā uara i raro i te ingoa kotahi, a te whakatutuki a ratou i te taupū e tika ana. Ko te ariā ko te kokonga o huānga i roto i te akoranga ako Java mō tīmata. I muri i te katoa, ko ratou te pūtake mō ngā hanganga maha raraunga.

No te mea Java ko, ki runga ake te katoa, te Plo, whakaritea ki huānga i roto i ētahi atu reo java hōtaka ngohi e kotahi āhuatanga - kua māngai ratou rite ahanoa. I roto i te tahi atu painga, faaore te reira i te hiahia ki te aroturuki i te purenga o te mahara, no te mea kua tukua reira aunoa.

Creation me whawhe o ngā huānga kotahi-ahu

He ngohi kotahi-ahu ko te aronui me te Java ngohi ko te kohinga o ngā huānga ingoa noa e pā ana, ia o nei hāngai ki te taupū ngā. whakaaturia Way ki whakaatu i te ngohi e i roto i te ahua i raro.

whakaaturia te tīmatanga te momo o Java ngohi, e āta te momo o ngā uara e penapena i roto i reira. Ka taea e kia tenei tetahi whaimana i roto i te momo raraunga Java. Next mai te ingoa o te ngohi, me te taiapa tapawha korero te taupatupatu te tāupe e ko he ngohi. Kia whai whakaaro ki te meka nui. Ka taea te whakanohoia e te taiapa i muri i te momo turanga o te ngohi, a i muri i te ingoa ngohi. I muri i te tohu rite tohu operator hou, kōkiri tohatoha o te mahara mo te ngohi (te taua rite i roto i te take o ngā), te momo o ngā huānga ki te penapena reira (ki te kia hototahi ki te momo turanga whakaaturia i runga ake), me, i te pae hopea, te tau tohua i roto i te taiapa.

Ko te taua o ngā āhuatanga i roto i te ngohi Java tīmata i 0. Ko te kupu, he rite ki te 0 te taupū o te huānga tuatahi i roto i te ngohi, me te ono o - 5. Hei tirohia ki te huānga motuhake o te ngohi, pērā i te rima o, whakapūtā te ingoa o te ngohi, ko rawaka me te taupū roto taiapa tapawha muri ki te ingoa . Ko te kupu e taea ki te tautapa rite te uara o te huānga, a tango i reira. Heoi, kia kia kotahi tupato, no te mea ki te haere koe i te taupū i nei kahore he huānga, puta he hapa.

Arrays multidimensional i roto i te Java

huānga Maha-ahu ko te raupapa o tetahi-ahu, i roto i te tahi atu huānga huānga tohutoro. I roto i te mau parau te tahi atu, te huānga o huānga. E rua-ahu te māmā o enei. Ratou hi'oraa e tamata tatou ki mahino te ariā. Hoki mārama, whakaatu ana te ahua i raro i te wetereo, me te hoahoa whakaahua i te hanganga o te ngohi e rua-ahu.

Ka rite ki a koutou e taea te kite, e kore te mea nui rerekē i te huānga kotahi-ahu te wetereo. Kia titiro a ki te hanganga. I roto i te wahi tuatahi, kua tāutuhia e matou nga taiapa i raro i nga mea timatanga 5. Enei āhuatanga he tetahi mea, engari tohutoro ki huānga takitahi. Te rahi o ia o ratou takoto e te tokomaha i roto i te rua o nga reu. I roto i te meka, he tairitenga huānga e rua-ahu i roto i te pāngarau e te kopu. Kia mahara e roto i tua ki te huānga wahi motuhake, kei hea te rongoa te uara o te roa ngohi (roa) i roto i te mahara whakaritea. Tikanga, kawea te mahi ki ngā huānga maha-ahu i roto i hoki koropiko tauroto.

huānga hikuwaru

Ko te ngohi e rua-ahu ko te ngohi o huānga. Tenei kua kitea kua matou. Otiia ahakoa e roto ngā huānga reira, i roa rerekē? Ko te whakahoki, ko te - ae, e taea e ratou. Ki tenei mutunga, whakarato Java te whai wāhi ki te whakapuaki i te ngohi e rua-ahu i roto i te ara motuhake. Hei tauira, e hiahia ana matou ki te hanga i tētahi ngohi e rua-ahu e e rokiroki i te ngohi e toru-ahu o te roa 2, 3 me te 4, aua. whakaaturia e ia e whai ake:

intarr [] [] = newint [3] [];

Me mōhio e kore matou e whakapūtā te tokomaha i roto i te rua i te reu. Whakatau i te rahi o te faanahohia ngohi ko e whai ake:

faanahohia [0] = int hou [2];

faanahohia [1] = int hou [3];

faanahohia [2] = newint [4];

Ni'ai ki te tūemi i taupū 0 ngā ki te ngohi tuatahi, e whakaatu matou i te reira ki te taha o 2. Ka te taupū huānga 1 kia tiakina te ngohi taha 3, a na i runga i. E mea tino ohie.

wetereo kē pānuitanga ngohi java

Arawhiti taea e tika te huānga, ina e hanga e ratou. E mea tino ohie.

Kia whai whakaaro ki nga pānuitanga me ngā huānga jerseyNumber playerName.

I roto i te take o ngā huānga e rua-ahu o tenei fanongonongo ko e whai ake:

int [] [] faanahohia = {

{1, 2, 3},

{4, 5, 6},

{7, 8, 9}

}

Ki te mahi i tenei, hei utu o te operator hou he awhi tuwhera, i roto i nei i te piko ko te rārangi o nga āhuatanga katoa. Java i roto i tenei take ka tukuna aunoa mahara hoki ratou me taupū ratou i runga i.

Arrays piha kaiawhina

Hei te mahi ki taua hinonga rite huānga i roto i Java, i roto i te mōkihi java.util he piha motuhake o te Arrays, e whakarato ana i te whānuitanga o ngā tikanga pateko, nui ngä ngā mahi ki a ratou. aroaro te rārangi o nga tikanga matua i roto i te ahua i raro.

E hi'opoa tatou i etahi o te tino whai hua ngohi Java tikanga:

- copyOf (roa ngohi) - hoki mai te kape o te ngohi tuku roa hāngai. Ki te he roa tuku atu i te ngohi taketake, na kua ki tonu te "anō" āhuatanga katoa ki te uara taunoa (0 ki te te momo ohie, me whakakahore, ki te te tohutoro).

- copyOfRange (ngohi, te taupū tuatahi, te taupū muri) - e kore e whakaaturia i roto i te ahua, engari he tikanga whai hua. kape te reira i o te ngohi haere, tautuhi taupū tika i te tuatahi ki te whakamutunga.

- ahua (ngohi) - Ka kōmaka te āhuatanga o te ngohi i roto i te raupapa aupiki.

- makona (uara ngohi) - whakakiia te uara ngohi hāngai tuku.

- binarySearch (uara ngohi) - hoki te taupū e ai he huānga ki te uara hāngai rongoa i roto i te ngohi Kōmaka tuku. Ki te kei te ngaro tenei huānga, hoki te maha tōraro te.

Mai he pateko nga tikanga, ki te karanga e kore hiahia ratou ki te hanga i tētahi tauira o te Arrays piha haapiiraa. E huaina tika ratou i reira: Arrays.sort (faanahohia).

mutunga

Kua arotakehia matou nga āhuatanga tino nui e pā ana ki te ngohi, a mo te hunga e tika tīmata ki te ako Java mō te tīmata, ko te nui hoki te māramatanga taketake o te hinonga taua tenei, kia rite ki te ngohi, me te tikanga taketake o te mahi ki a ia. O te akoranga, ka whakarato i te mahi he nui te māramatanga o tenei taputapu. Na reira, e kore e e mangere ki te mahi i te tahi mau mahi, raweke huānga i roto i ngā huarahi.

Ngohi Java kaiawhina piha i whakamahia i roto i "whawhai" tikanga, na e tūtohu ana ki te tīmata ki te ako ki te whakaputa i ā ngā mahi taketake katoa ki huānga.