Puas yog arrays raug suav hais tias yog hom ntaub ntawv tseem ceeb?

2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47

Tsis yog, arrays tsis yog thawj datatypes hauv Java. Lawv yog cov khoom ntim khoom uas tsim dynamically. Txhua txoj hauv kev ntawm Chav Kawm Object yuav raug hu rau ntawm ib qho array . Lawv yog xav txog raws li kev siv hom ntaub ntawv.

Ib yam li ntawd, hom ntaub ntawv twg yog array?

Ib array yog homogeneous cov ntaub ntawv qauv (cov ntsiab lus muaj tib yam hom ntaub ntawv ) uas khaws ib ntu ntawm cov khoom sib txuas ua ke - faib rau hauv kev nco sib txuas. Txhua yam khoom ntawm lub array tuaj yeem nkag tau los ntawm kev siv nws tus lej (piv txwv li, index). Thaum koj tshaj tawm ib array , koj teem nws loj.

Tsis tas li ntawd, arrays ntawm cov khoom sib txawv li cas ntawm arrays ntawm cov hom qub? Hauv cov ntsiab lus yooj yim laymen, Object Arrays tau tuav khoom ntawm qhov tshwj xeeb- hom xwb hos keeb kwm - hom tau tuav keeb kwm . Cia peb pom qhov txawv nrog piv txwv, Hom thawj : int iArrays = new int[4];

Yog li ntawd, vim li cas array tsis yog cov ntaub ntawv tseem ceeb?

Cov tsis yog - hom ntaub ntawv qub suav nrog cov chav kawm, uas yog cov phiaj xwm rau ib qho khoom muab; interfaces, uas zoo li dashboards lossis tswj vaj huam sib luag rau cov chav kawm vim lawv muaj cov nyees khawm, tab sis cov haujlwm yog nyob rau lwm qhov; thiab arrays , uas yog ib yam khoom uas muaj ntau qhov tseem ceeb ntawm tib yam hom.

Dab tsi yog qhov txawv ntawm primitive thiab array cov ntaub ntawv hom hauv Java?

Hom thawj yog qhov yooj yim hom ntaub ntawv : byte, short, int, long, float, double, boolean, char. Kev siv hom yog tej chav kawm instantiable thiab arrays : String, Scanner, Random, Die, int, String, etc. Reference variables store addresses to locations in memory rau qhov twg cov ntaub ntawv yog khaws cia.