Updating main GUI Elements in Java Swing -

i'm trying update main gui in java swing application, there runnable thread keeps main gui visible, problem is called in main, , main static function. element.setttext. calls want update not static. how can update lables,..etc in main gui then?

public static void main(string args[])     {         java.awt.eventqueue.invokelater(new runnable() {             public void run()              {                 new agc().setvisible(true);           // code update labels here             }         });     } 

what understood question think static means non-changeable. not true java. in java objects , components never change characterized final.

keep main simple , small , make loops , changes in dothings();

here timer in order update text of jlabel:

import java.awt.event.actionevent; import java.awt.event.actionlistener; import javax.swing.jframe; import javax.swing.jlabel; import javax.swing.jpanel; import javax.swing.timer;  public class foo extends jframe {      public foo() {         jlabel1 = new jlabel("label 1");         jpanel1 = new jpanel();         jpanel1.add(jlabel1);         add(jpanel1);         pack();         // code update whatever here         dothings();     }      private void dothings() {         // code update whatever here         actionlistener actionlistener = new actionlistener() {             @override             public void actionperformed(actionevent actionevent) {                 jlabel1.settext("foo " + (j++));             }         };         timer timer = new timer(500, actionlistener);         timer.start();     }      public static void main(string args[]) {         java.awt.eventqueue.invokelater(new runnable() {             @override             public void run() {                 new foo().setvisible(true);             }         });     }     private jlabel jlabel1;     private jpanel jpanel1;     private int j = 0; }