Cov txheej txheem:
Video: Kuv yuav kaw AWT qhov rais li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Peb ua tau kaw tus AWT Window los yog Ncej los ntawm kev hu dispose() lossis System. exit() hauv windowClosing() method. Txoj kev windowClosing() muaj nyob hauv WindowListener interface thiab WindowAdapter chav kawm. Cov chav kawm WindowAdapter siv WindowListener interfaces.
Ib yam li ntawd, koj tuaj yeem nug, koj yuav kaw lub qhov rais li cas?
Muaj ob txoj hauv kev kaw lub qhov rais:
- Pov tseg lub qhov rais tom qab lub khawm kaw lawm: Hu rau txoj kev pov tseg hauv qhov raisClosing method. ncej.
- Tshem tawm qhov kev pab cuam tom qab kaw khawm: Hu rau System. txoj kev tawm hauv qhov raisClosing method.
Tsis tas li ntawd, kuv yuav kaw Java li cas? Yog koj xav tau kaw los yog txiav koj java ua daim ntawv thov ua ntej no, koj txoj kev xaiv tsuas yog siv System. tawm (int status) los yog Runtime. getRuntime(). tawm ().
Tom qab ntawd, lo lus nug yog, yuav ua li cas kuv kaw JFrame yam tsis tau tawm?
Tsis muaj txoj hauv kev kaw a JFrame thiab nws yuav tsum cia li muab zais. Yog tias koj ntshai nws noj cov khoom siv hauv lub cev, koj tuaj yeem dereference nws thiab tos kom cov khib nyiab tshem tawm.
Txoj kev Dispose hauv Java yog dab tsi?
Cov txoj kev pov tseg () yog ib feem ntawm lub viav vias pob whereas System. tawm () yog ib feem ntawm lub java ua pob System. pov tseg () txoj kev pab kom meej cov peev txheej ntawm txhua tus ncej / UI feem cuam tshuam qhov System. pov tseg () tsis kaw lub VM whereas System. tawm () kaw lub kaw lus thiab tshem tawm / tso tawm txhua tus tuav uas qhib
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