Video: Dab tsi yog kev siv pov tseg hauv Java?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cov Java pov lo lus tseem ceeb yog siv tshaj tawm ib qho kev zam. Nws muab cov ntaub ntawv rau tus programmer uas yuav tshwm sim muaj qhov tshwj xeeb yog li nws yog qhov zoo dua rau tus programmer los muab cov cai tshwj xeeb tuav kom tswj tau qhov dej ib txwm muaj. Exception Handling yog feem ntau siv los tswj cov kev kuaj xyuas.
Ib yam li ntawd, nws yog nug, dab tsi yog siv pov thiab pov hauv Java?
Pov lo lus tseem ceeb yog siv nyob rau hauv lub cev txoj kev mus pov ib qho kev zam, thaum pov yog siv nyob rau hauv txoj kev kos npe los tshaj tawm cov kev zam uas tuaj yeem tshwm sim hauv cov nqe lus tam sim no hauv txoj kev.
Ib yam li ntawd, peb puas tuaj yeem siv pov tseg yam tsis cuam tshuam Java? Koj tuaj yeem pov tau unchecked kev zam tsis muaj yuav tsum tshaj tawm lawv yog tias koj xav tau tiag tiag. Unchecked kev zam txuas ntxiv RuntimeException. Throwables uas txuas ntxiv yuam kev tseem tsis tau kuaj xyuas, tab sis tsuas yog yuav tsum yog siv rau cov teeb meem loj heev (xws li invalid bytecode).
Ua raws li qhov no, kev siv pov tseg yog dab tsi?
Cov pov lo lus tseem ceeb yog siv rau pov ib qho kev zam los ntawm hauv ib txoj kev. Thaum a pov nqe lus tau ntsib thiab ua tiav, kev ua tiav ntawm txoj kev tam sim no raug tso tseg thiab rov qab mus rau tus hu. Raws li qhov pov lo lus tseem ceeb yog siv los tshaj tawm tias ib txoj kev yuav pov ib qho lossis qee qhov kev zam.
Dab tsi yog qhov pov?
Feem ntau, ib daim pam yog ib daim ntaub loj uas siv los ua kom sov feem ntau xws li ntaub pua chaw pw; a pov yog ib daim pam me me feem ntau siv los ua cov khoom dai saum lub rooj zaum, thiab afghan yog ib daim pam crocheted lossis knitted pam. Kev sib txawv ntxiv tuaj yeem ua tau los ntawm kev txiav txim siab qhov loj me, cov khoom siv, kev siv thiab lo lus keeb kwm.
Pom zoo:
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9 Teb. Koj tuaj yeem pov cov kev txwv tsis raug txheeb xyuas yam tsis tas yuav tshaj tawm lawv yog tias koj xav tau tiag tiag. Unchecked kev zam txuas ntxiv RuntimeException. Throwables uas txuas ntxiv yuam kev tseem tsis tau txheeb xyuas, tab sis tsuas yog yuav tsum tau siv rau cov teeb meem loj tiag tiag (xws li invalid bytecode)
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