java - Swing timer synchronization -

i'm confused how swing timer work. in code below, want display 0~9 every 400ms in first text field when press start (once). after second text field display "finished".

public class main extends jpanel{  private static final long serialversionuid = 1l; private jbutton bstart; private jtextfield ttest; private jtextfield tnumber;  main(){     bstart = new jbutton("start");     bstart.addactionlistener(new actionlistener(){         @override         public void actionperformed(actionevent arg0) {             // todo auto-generated method stub             displaynumbers();         }            });      ttest = new jtextfield(null, 30);     tnumber = new jtextfield(" ", 30);     tnumber.seteditable(false);     this.setsize(300, 100);     this.add(bstart);     this.add(tnumber);     this.add(ttest);  }  public void displaynumbers(){     new timer(400, new actionlistener() {         int = 0;         public void actionperformed(actionevent evt) {             if(i<10){                 tnumber.settext(integer.tostring(i));                 i++;             }                    else                 ((timer)evt.getsource()).stop();         }     }).start();       ttest.settext("finished"); }  public static void createandshowgui(){     jframe frame = new jframe("test");     frame.add(new main());     frame.setsize(400, 150);     frame.setvisible(true);  }   public static void main(string args[]){     swingutilities.invokelater(new runnable(){         @override         public void run() {             // todo auto-generated method stub             createandshowgui();         }                });      } } 

however, first displays "finished" before finishing displaying 0 ~ 9. think swing timer works in edt, "ttest.settext("finished");" executed after timer thread. why not work? how wait finishing displaying 0 ~ 9 print "finished"? thanks!

thanks answers. in fact want ask in general:

new timer(delay, new actionlistener() {      public void actionperformed(actionevent evt) {             dosomething();     }  }).start();       doothers(); 

how let doothers() execute after dosomething()? (in cases, cannot put doothers() inside actionperformed function, answers mentioned).

the timer works concurrently. timer started, text set finished, , timer fires , first number appears.

to make timer display finished after finished, put ttest.settext("finished"); in else clause of if(i<10).