Ib chav kawm Wrapper yog chav kawm uas nws cov khoom qhwv lossis muaj cov ntaub ntawv keeb kwm yav dhau los Thaum peb tsim ib qho khoom rau chav wrapper, nws muaj ib daim teb thiab hauv daim teb no, peb tuaj yeem ua tau khaws cov ntaub ntawv qub qub. Hauv lwm lo lus, peb tuaj yeem qhwv tus nqi qub rau hauv cov khoom hauv chav kawm wrapper.
Dab tsi yog siv wrapper chav kawm hauv Java?
Cov chav kawm wrapper siv cov txheej txheem los hloov cov khoom qub rau hauv cov khoom thiab cov khoom rau hauv keeb kwm. Muaj lub tswv yim ntawm autoboxing thiab unboxing nyob rau hauv cov chav kawm wrapper, uas hloov cov primitives rau hauv cov khoom thiab cov khoom rau hauv primitives tau.
Wrapper txoj hauv kev yog dab tsi?
Ib txoj kev qhwv yog tus adapter lossis lub façade; nws muab lwm qhov interface rau ib txoj kev uas twb muaj lawm. Koj tau raug nug kom sau ib lub façade (facade) - los muab qhov yooj yim interface rau cov neeg siv khoom uas tsis tas yuav qhia qhov siab thiab qis tus nqi.
txhais tau li cas los qhwv ib chav?
Ib chav wrapper yog ib chav kawm uas "wraps" ib ncig ntawm lwm yam, ib yam li nws lub npe. Lub ntsiab txhais ntau dua ntawm nws yuav yog chav kawm uas siv tus qauv Adapter.
Puas yog chav wrapper?
Ib chav Wrapper yog chav kawm uas muaj cov ntaub ntawv keeb kwm yav dhau los (int, char, luv, byte, thiab lwm yam). Hauv lwm lo lus, cov chav kawm wrapper muab txoj hauv kev los siv cov ntaub ntawv keeb kwm yav dhau los (int, char, luv, byte, thiab lwm yam) ua khoom. Cov chav kawm wrapper no tuaj hauv java. pob khoom siv.
