Java Util arrays yog dab tsi?
Java Util arrays yog dab tsi?

Video: Java Util arrays yog dab tsi?

Video: Java Util arrays yog dab tsi?
Video: Python! Flattening Nested Lists 2024, Kaum ib hlis
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Cov Arrays chav kawm hauv java ua . siv pob yog ib feem ntawm cov Java Sau Framework. Cov chav kawm no muab txoj hauv kev zoo li qub rau dynamically tsim thiab nkag mus Java arrays . Nws tsuas muaj txoj hauv kev zoo li qub thiab cov txheej txheem ntawm Object class. Cov txheej txheem ntawm chav kawm no tuaj yeem siv los ntawm lub npe chav kawm nws tus kheej.

Tom qab ntawd, dab tsi yog arrays asList hauv Java?

Cov asList () txoj kev java ua . siv. Arrays chav kawm yog siv los xa rov qab daim ntawv teev npe tas li rov qab los ntawm qhov teev tseg array . Txoj kev no ua raws li tus choj ntawm array -based thiab sau raws APIs, ua ke nrog Sau.

Ib sab saum toj no, puas yog chav kawm array hauv Java? Hauv Java , array yog ib yam khoom ntawm dynamically generated chav kawm . Java array inherits Lub Object chav kawm , thiab siv Serializable nrog rau Cloneable interfaces. Peb tuaj yeem khaws cov txiaj ntsig tseem ceeb lossis cov khoom hauv ib qho array hauv Java . Zoo li C / C ++, peb tuaj yeem tsim ib qho dimentional lossis multidimentional arrays hauv Java.

Tsis tas li ntawd, dab tsi yog arrays sau hauv Java?

Arrays . puv () txoj kev yog nyob rau hauv java ua . siv. Arrays chav kawm. Txoj kev no muab cov ntaub ntawv teev cov nqi rau txhua lub hauv paus ntawm qhov kev teev tseg ntawm qhov teev tseg array.

Dab tsi ntawm Java Util arrays tuaj yeem siv los luam cov ntsiab lus ntawm ib qho array?

copyOf() txoj kev yog nyob rau hauv java ua . siv . Arrays chav kawm. Nws cov ntawv luam qhov teev tseg array , truncating los yog padding nrog cuav (yog tias tsim nyog) yog li cov luam muaj qhov ntev ntev.

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