java - How can I implement FocusListener of JDatePicker? -


i want perform function in focusevent of jdatepicker. using below code implementing focuslistener.

properties p = new properties(); p.put("text.today", "today"); p.put("text.month", "month"); p.put("text.year", "year"); utildatemodel model = new utildatemodel(); calendar today=calendar.getinstance(); date todaydate=new date(); today.settime(todaydate); model.setdate(today.get(calendar.year), today.get(calendar.month), today.get(calendar.date)); model.setselected(true); jdatepanelimpl datepanel =new jdatepanelimpl(model, p); jdatepickerimpl datepicker = new jdatepickerimpl(datepanel,new datelabelformatter());  datepicker.addfocuslistener(new focuslistener() {      @override     public void focuslost(focusevent e) {         // todo auto-generated method stub         system.out.println("fcus lost");     }      @override     public void focusgained(focusevent e) {         // todo auto-generated method stub         system.out.println("focus gained");         swingutilities.invokelater(new runnable() {              @override             public void run() {                 // todo auto-generated method stub                 //repaint();                 displayimage(categoryattributeobj,imgroupobj);             }          });     } });

this code not working. error in code?

i'm not particular fan of jdatepicker, number of personal reasons.

you implement own version provided functionality after or try swinglabs, swingx jxdatepicker instead, example

import java.awt.dimension; import java.awt.eventqueue; import java.awt.graphics; import java.awt.graphics2d; import java.awt.event.focusadapter; import java.awt.event.focusevent; import javax.swing.jbutton; import javax.swing.jframe; import javax.swing.jpanel; import javax.swing.uimanager; import javax.swing.unsupportedlookandfeelexception; import org.jdesktop.swingx.jxdatepicker;  public class main {      public static void main(string[] args) {         new main();     }      public main() {         eventqueue.invokelater(new runnable() {             @override             public void run() {                 try {                     uimanager.setlookandfeel(uimanager.getsystemlookandfeelclassname());                 } catch (classnotfoundexception | instantiationexception | illegalaccessexception | unsupportedlookandfeelexception ex) {                     ex.printstacktrace();                 }                  jframe frame = new jframe("testing");                 frame.setdefaultcloseoperation(jframe.exit_on_close);                 frame.add(new testpane());                 frame.pack();                 frame.setlocationrelativeto(null);                 frame.setvisible(true);             }         });     }      public class testpane extends jpanel {          public testpane() {             add(new jbutton("before"));             jxdatepicker picker = new jxdatepicker();             picker.geteditor().addfocuslistener(new focusadapter() {                 @override                 public void focusgained(focusevent e) {                     system.out.println("you have foucs");                 }             });             add(picker);             add(new jbutton("after"));         }      } }

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