Cov txheej txheem:
- Txhawm rau kom tau txais tus nqi xaiv los ntawm JList, ib tus yuav tsum ua raws li cov kauj ruam no:
Video: Kuv yuav ntxiv ib yam khoom rau JList li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Populate cov JList nrog DefaultListModel, tsis yog vector, thiab muaj cov qauv pom hauv chav kawm. Ces cias hu rau addElement ntawm daim ntawv teev cov qauv rau ntxiv cov khoom rau nws. Zoo koj tsis tuaj yeem siv ncaj qha uas Array tab sis siv qhov no yuav pab tau koj tib yam. DefaultListModel demoList = tshiab DefaultListModel(); demoList.
Xav txog qhov no, koj yuav tsim JList li cas?
Txhawm rau kom tau txais tus nqi xaiv los ntawm JList, ib tus yuav tsum ua raws li cov kauj ruam no:
- Tsim ib chav kawm uas txuas ntxiv JFrame.
- Tsim ib qho array ntawm cov khoom. Cov no yuav yog cov txiaj ntsig ntawm JList.
- Tsim ib JList tshiab nrog cov array saum toj no.
Ib tug kuj yuav nug, Kuv yuav tshem tawm cov khoom xaiv los ntawm JList hauv Java li cas? Cov JList tivthaiv yog rov qab los ntawm ib daim ntawv teev qauv. Yog li qhov tsuas pom zoo txoj kev tshem tawm ib yam khoom los ntawm daim ntawv saib yog mus rho tawm nws los ntawm tus qauv (thiab refresh tus saib). Ib zaug koj rho tawm tus keeb los ntawm tus qauv nws kuj yuav raug tshem tawm ntawm daim ntawv.
Raws li, JList yog dab tsi hauv Java?
JList yog ib feem ntawm Java Swing pob. JList yog ib qho kev tivthaiv uas qhia txog cov khoom siv thiab tso cai rau tus neeg siv xaiv ib lossis ntau yam khoom. JList tau txais JComponent chav kawm. JList yog ib txoj hauv kev yooj yim los tso saib array ntawm Vectors. JList (E l): tsim ib daim ntawv teev npe tshiab nrog cov ntsiab lus ntawm array.
DefaultListModel yog dab tsi hauv Java?
DefaultListModel Chav kawm. Pob: javax.swing. DefaultListModel muab kev siv yooj yim ntawm daim ntawv teev cov qauv, uas tuaj yeem siv los tswj cov khoom tso tawm los ntawm JList tswj.
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