Start 2 Threads by clicking 1 JButton

Question

I want to change 2 JPanels in a CardLayout before the Action of this JButton is performed.
I tried to add a second ActionListener for this Button but both ActionListener used the same Thread so there was no visual effect :(
What am I to do to fix this problem?

Answer 1

First of all thank you for your help.
I already tried to start a second thread:
     public class showWait extends Thread {
          CardLayout textLayout;          
          public showWait(CardLayout tL)
               textLayout=tL;
          public void run()
               textLayout.show(textContainer,"STANDBY");
          public CardLayout getLayout()
               return textLayout;
public void actionPerformed(ActionEvent evt) {
     showWait sw = new showWait(textLayout);
     sw.run();
     textLayout=sw.getLayout();
myCalculation();
textLayout.show(textContainer,"HTML");
But it doesn't work :(
The change of the CardLayout in the showWait thread is not displayed.
Should I declare the Calculation as an other class extends Thread?
That would not be easy because I would have to clone many objects.
Jörn