How can I get the container of a button after the button is clicked?

Question

I have two components:
public class A extends JPanel implements ActionListener {
    public A() {
    public void actionPerformed(ActionEvent e) {
        String command = e.getActionCommand();
        // here need to know the instance of B to execute it's process()
        // but I can only know the button jb in B via the following code:
        JButton myjb = (JButton)(e.getSource());
public class B extends JPanel {
    public ContainerInfoInput(ActionListener al) {
        JButton jb = new JButton("OK");
        jb.setActionCommand("B.ok");
        jb.addActionListener(al);
    public process() {
public class Main {
    A a = new A();
    B b = new B(a);
}How can I get the instance of B in which the button is clicked?
Thank you

Answer 1

I think it's a defect of the listener mechanism. Under the present circumstance, I must do it like the following:
I must use another class M as a bridge:
class A {
    public A() { }   
    public processA (String info ){}
class B{
    public B(ActionListener al) {       
        JButton jb = new JButton("OK");       
        jb.setActionCommand("B.ok");      
        jb.addActionListener(al);  
   public String processB () {    }
class M implements ActionListener  {
    public M() {
        A a = new A();
        B b = new B(this);
    public void actionPerformed(ActionEvent e) {
        String command = e.getActionCommand();
        if(command.equals("B.ok")) {
            String information =b.processB();
            a.processA(information);
}Why not just use A to listen B and obtain instance of B through the ActionEvent?
Anyone know a solution about it?