动态jPanel按钮actionCommand

Question

I would like to ask a question related to dynamic button actionPerformed . I have jFrame with content menu which will reference to dynamic jPanel1 by cardLayout and jButton1 . Dynamic jPanel1 contain saveButton . I attached Test ActionListener to jButton1 . The problem that I am facing is I have set actionCommand to jPanel1.saveButton as shown in below code. And when I click jButton1 output I am getting 2 and 3 . I was expected that 2nd and 3rd jPanel1.SaveButton also was clicked, but just 3rd jPanel1.saveButton was clicked. How do I get that 2nd and 3rd jPanel1.SaveButton were clicked?

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;

public class Test implements ActionListener {

    public Test() {
    }

    public void actionPerformed(ActionEvent e) {

        for (int i = 0; i<2; i++){
           jPanel1.save.setActionCommand(String.valueOf(i+2));
           String n = jPanel1.save.getActionCommand();
           jPanel1.save.doClick();
           System.out.println("jPanel1: " + n);
        }

           System.out.println("The action have been performed");
    }

    public static void main(String[] agrs) {
           JButton but = new JButton();
           but.addActionListener(new Test());
           but.doClick();
    }  
}

Output:
jPanel1: 2
jPanel1: 3

Answer 1

If you want every ActionListener instance refer to a different JPanel you can pass a reference to that `JPanel' to its constructor :

JPanel panel1 = new JPanel();   
JButton but = new JButton();
but.addActionListener(new Test(panel1));

And change the constructor to use that reference:

JPanel panel; 
public Test(JPanel panel) {
    this.panel = panel;
}