java - Using Swingworker to constantly update a GUI -

in code, user presses button, , want invoke swingworker background thread, loop through list, cross reference other data, , update gui jlabel every pass through loop. problem know should in doinbackground(), have nothing return, , want update jpanel new jlabel every time loop loops. how do this? thanks!

here complete example swing worker example

you have use publish() , override process()

example:

class worker extends swingworker<void, string> {      @override     protected void doinbackground() throws exception {        //here make heavy task running in thread not in edt        //process after time call publish()        }      @override     protected void process(list<string> chunks) {         //this executed in edt         //here update label     } }