Vim li cas throwable yog ib chav kawm?
Vim li cas throwable yog ib chav kawm?

Video: Vim li cas throwable yog ib chav kawm?

Video: Vim li cas throwable yog ib chav kawm?
Video: Adrian Zumbrunnen - Animation 2024, Kaum ib hlis
Anonim

Throwable yog ib chav kawm tsis muaj interface pom hauv java. Li no Cov chav kawm pov tseg yog niam txiv chav kawm ntawm txhua yam kev ua yuam kev thiab kev zam hauv Java lus. Cov khoom uas yog piv txwv ntawm no chav kawm (los yog ib tug ntawm nws tus me nyuam chav kawm ) tsuas yog muab pov los ntawm JVM lossis tuaj yeem cuam tshuam los ntawm Java pov nqe lus.

Ib yam li ntawd, dab tsi yog chav kawm pov tseg?

lang. Cov chav kawm pov tseg yog lub superclass ntawm txhua qhov yuam kev thiab kev zam hauv Java lus. Tsuas yog cov khoom uas yog piv txwv ntawm qhov no chav kawm (los yog ib qho ntawm nws cov subclasses) raug pov los ntawm Java Virtual Machine los yog tuaj yeem cuam tshuam los ntawm Java pov nqe lus.

Tsis tas li ntawd, dab tsi yog pov tau hauv Java nrog piv txwv? Cov Pov tau chav kawm yog superclass ntawm txhua qhov yuam kev thiab kev zam hauv lub Java lus. Ib yam li ntawd, tsuas yog cov chav kawm no lossis ib qho ntawm nws cov subclasses tuaj yeem yog hom kev sib cav hauv cov lus ntes. A Pov tau chav kawm muaj ib qho snapshot ntawm kev tua pawg ntawm nws cov xov thaum lub sijhawm nws tau tsim.

Tib neeg kuj nug, vim li cas peb thiaj siv pov tseg hauv Java?

Pov tau yog superclass ntawm tag nrho cov kev zam thiab yuam kev. Koj ua tau siv nws nyob rau hauv ib tug catch clause, tab sis koj yuav tsum tsis txhob ua nws! Yog koj siv Throwable nyob rau hauv ib tug catch clause, nws yuav tsis tsuas ntes tag nrho cov kev zam; nws tseem yuav ntes txhua qhov yuam kev.

Puas yog ib lo lus pov tseg?

Noun. (computing, programming) Txhua yam khoom uas tuaj yeem muab pov rau hauv qhov kev zam. Kev zam raug pov tseg thaum qee qhov qauv ntawm qhov project pom qhov ua yuam kev lossis yog tias nws ua haujlwm qee tus qauv Java pov tau.

Pom zoo: