Video: Puas tuaj yeem sim muaj ntau tus ntes hauv Java?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Java ntes ntau yam kev zam
A sim thaiv tau ua raws li ib los yog ntau tshaj ntes thaiv. Txhua ntes block yuav tsum muaj ib tug tshwj xeeb handler. Yog li, yog tias koj muaj los ua cov haujlwm sib txawv ntawm qhov tshwm sim ntawm qhov sib txawv, siv java ntau- ntes thaiv.
Raws li qhov no, kev sim tuaj yeem muaj ntau yam catches?
Yog koj tuaj yeem muaj ntau tus ntes blocks nrog sim nqe lus. Koj pib nrog ntes tshwj xeeb thiab tom qab ntawd hauv qhov thaiv kawg koj tuaj yeem ua tau ntes puag Exception. Tsuas yog ib qho ntawm cov ntes thaiv yuav lis koj qhov kev zam. Koj tau sim thaiv tsis muaj ib ntes thaiv.
Ib yam li ntawd, pes tsawg sim ntes blocks tuaj yeem muaj nyob hauv Java? Nws muaj ib sim thaiv thiab peb ntes blocks . Tsuas yog ib qho xwb ntes block yuav tau tua ib zaug, nws nyob ntawm lub logic sab hauv sim thaiv . Hauv kuv sim thaiv , cov cai muaj peb hom kev zam.
Tom qab ntawd, ib tus tuaj yeem nug, peb puas tuaj yeem muaj ntau yam ntes rau ib zaug hauv Java?
A ib sim thaiv tuaj yeem muaj ntau tus ntes blocks txuam nrog nws, koj yuav tsum tso lub ntes blocks nyob rau hauv xws li ib tug txoj kev uas cov generic exceptional handler ntes thaiv yog qhov kawg (saib hauv qhov piv txwv hauv qab no). Koj yuav tsum tsis txhob faib tus lej los ntawm xoom kuv tawm ntawm sim - ntes thaiv hauv Java.
Ua haujlwm ntau npaum li cas?
Feem ntau, ntau catch block yog siv los lis ntau hom kev zam txhais tau tias txhua ntes block yog siv los lis ntau hom kev zam. Yog hais tias qhov muab hom kev zam yog txuam nrog thawj ntes thaiv, ces ua ntej ntes block executes thiab seem ntawm cov ntes blocks yog ignored.
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