java - Using a timer for my visually updating bar graph -

i have been having trouble getting timer show bar graph updating on time instead, have graph being sorted automatically though set timer update every couple of seconds. here paint , updatetextfieldthread method.

private class display extends jpanel    {         private color color = color.red;   public void paintcomponent(graphics g) {         super.paintcomponent(g);         g.setcolor(color.red);         dimension d = getpreferredsize();         int clientwidth = d.width;         int clientheight = d.height;         int barwidth = clientwidth / array.length;         int x=0, y=0;         int base=410;         for(int i=0;i<array.length;i++){              x+=30;              y+=30;             int linethickness=20;             int linelength=50;                 g.setcolor(color.red);                 g.fillrect(x, base-linelength*array[i], linethickness , linelength*array[i]);                 g.setcolor(color.black);                 g.drawrect(x, base-linelength*array[i], linethickness, linelength*array[i]);          }  }  }  private class updatetextfieldthread extends swingworker<void, integer>      {         static final int thread_delay = 1000;         protected void doinbackground()         {              executorservice service = executors.newsinglethreadexecutor();             try {                 runnable r = new runnable() {                     @override                     public void run() {                         insertionsort(array);                         display.repaint();                     }                 };                 future<?> f = service.submit(r);                  f.get(2, timeunit.minutes);              }                 catch (final interruptedexception e) {                     // thread interrupted during sleep, wait or join                 }                 catch (final timeoutexception e) {                     // took long!                 }                 catch (final executionexception e) {                     // exception within runnable task                 }                 {                     service.shutdown();                 }             return null;            }           protected void process(java.util.list<integer> list)         {             textfield.settext("" + list.get(list.size() - 1));         }     } 

now revised: i'm breaking down sorting method step step , updating thread inside of still not breaking down graph.

private class buttonhandler implements actionlistener {      public void actionperformed(actionevent e)     {          object src = e.getsource();          if (src == button1){             int[] array2=array;            (int = 1; < array2.length; i++) {                 int thingtoinsert = array2[i];                  int j = - 1;                 while (j >= 0 && thingtoinsert<array2[j]) {                 array2[j+1] = array2[j];                 j--;                 }                  array2[j+1] = thingtoinsert;                 (new updatetextfieldthread()).execute();             }           }          } }    private class updatetextfieldthread extends swingworker<void, integer>      {          static final int thread_delay = 1000;          protected void doinbackground()         {              executorservice service = executors.newsinglethreadexecuto();             try {                 runnable r = new runnable() {                     @override                     public void run() {                         try {             thread.sleep(thread_delay);             display.repaint();             } catch (interruptedexception e) {             e.printstacktrace();                         }                    }                 };                 future<?> f = service.submit(r);                  f.get(2, timeunit.minutes);              }                 catch (final interruptedexception e) {                     // thread interrupted during sleep, wait or join                 }                 catch (final timeoutexception e) {                     // took long!                 }                 catch (final executionexception e) {                     // exception within runnable task                 }                 {                     service.shutdown();                 }             return null;             }