Catching Exception yuav ntes ob qho tib si kuaj thiab runtime exceptions. Cov kev zam Runtime sawv cev rau cov teeb meem uas yog qhov tshwm sim ncaj qha ntawm qhov teeb meem programming, thiab yog li ntawd yuav tsum tsis txhob raug ntes vim nws tsis tuaj yeem xav kom rov zoo los ntawm lawv lossis daws lawv.
Yuav ua li cas zam lub sijhawm ua haujlwm?
Tsis zoo li cov kev zam uas tsis suav tias yog Runtime Exceptions, Runtime Exceptions yeej tsis raug kuaj xyuas. … Tus neeg siv yuav tsum tsis txhob sim daws qhov kev zam no vim tias nws tsuas yog kho qhov teeb meem thiab tsis kho nws tag nrho.
Puas muaj kev zam runtime kuaj?
Unchecked exceptions is not checked by the compiler Cov no hu ua runtime exceptions. Cov kev zam uas tsis tau txheeb xyuas yuav tuaj rau hauv lub neej thiab tshwm sim hauv qhov kev zov me nyuam, ib zaug ib qho kev ua txhaum cai raug tua. Hauv Java, tus tswvcuab txoj kev tsis raug yuam los ntawm lub compiler kom tshaj tawm cov kev txwv tsis pub nkag rau hauv txoj kev tshaj tawm.
Yuav tsis txheeb xyuas qhov kev zam raug ntes tau?
Nyob rau hauv kev nyeem ntawv kuv pom tias Unchecked Exception tsis tuaj yeem ua tsis tau los ntawm koj cov cai piv txwv li peb tsis tuaj yeem siv sim / ntes thaiv thiab cov piv txwv yog kev zam xws li ArrayIndexOutOfBoundsException, NullPointerException. Tab sis cov kev zam no tuaj yeem daws tau siv sim / ntes thaiv.
Yuav raug zam li cas?
Mustake 2: Catch unspecific exceptionsException in the main method of your Java SE application. … Tab sis nco ntsoov tias thawj qhov thaiv thaiv uas tswj cov chav kawm tshwj xeeb lossis ib qho ntawm nws cov superclasses yuav ntes nws. Yog li, nco ntsoov ntes cov chav kawm tshwj xeeb tshaj plaws ua ntej.
