Cov txheej txheem:
Video: Kuv yuav siv JFileChooser li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Qhia qhib cov ntaub ntawv yooj yim siv JFileChooser
- Ntxiv cov ntsiab lus ntshuam yuav tsum tau: import javax.swing. JFileChooser ;
- Tsim ib qho piv txwv tshiab ntawm JFileChooser chav kawm: JFileChooser fileChooser = new JFileChooser ();
- Teem cov directory tam sim no:
- Qhia lub dialog:
- Xyuas seb tus neeg siv xaiv cov ntaub ntawv lossis tsis:
- Xaiv cov ntaub ntawv xaiv:
- Thiab tag nrho cov code snippet yog raws li nram no:
Raws li, JFileChooser yog dab tsi hauv Java?
JFileChooser yog ib feem ntawm java ua Swing pob. Cov java ua Swing pob yog ib feem ntawm JavaTM Foundation Classes (JFC). Java Viav vias muab cov khoom xws li cov nyees khawm, panels, dialogs, thiab lwm yam. JFileChooser yog ib txoj hauv kev yooj yim thiab muaj txiaj ntsig los qhia tus neeg siv xaiv cov ntaub ntawv lossis cov npe.
Ib yam li ntawd, cov ntaub ntawv hauv Java yog dab tsi? Kev tshaj tawm. Java File chav kawm sawv cev rau cov ntaub ntawv thiab cov npe pathnames hauv kev paub daws teeb meem. Cov chav kawm no yog siv los tsim cov ntaub ntawv thiab cov npe, ntaub ntawv nrhiav, ntaub ntawv deletion, thiab lwm yam Cov ntaub ntawv khoom sawv cev qhov tseeb ntaub ntawv / directory ntawm lub disk.
Ib yam li ntawd, tib neeg nug, JOptionPane yog dab tsi hauv Java?
Java JOptionPane . Cov JOptionPane chav kawm yog siv los muab cov txheej txheem dialog box xws li cov lus dialog box, paub meej tias dialog box thiab input dialog box. Cov thawv sib tham no yog siv los tso saib cov ntaub ntawv lossis tau txais cov tswv yim los ntawm tus neeg siv. Cov JOptionPane chav kawm inherits JComponent chav kawm.
JFrame hauv viav vias yog dab tsi?
JFrame yog class of javax. viav vias pob txuas ntxiv los ntawm java. awt. ncej, nws ntxiv kev txhawb nqa rau JFC / SWING cov khoom siv architecture. Nws yog lub qhov rais sab saum toj, nrog ciam teb thiab lub npe bar.
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