Java – get button name from actionlistener?

I have browsed the Internet, but I can't find the answer

I am using the for loop to create 36 buttons called A1, A2, etc., and assign a unique action command to each button at the same time

Later, I want to get the name of the button from the actionperformed (ActionEvent E) method

I can make actioncommand simple enough, but I also need the name of the button

Any help a lot appitecaited!

Edit:

This is the code I'm using:

String letters[] = {"0","a","b","c","d","e","f"};
JButton btn[] = new JButton[35];
int count = 0;


for (int f=1; f < 7;f++){

        for (int i=1; i < 7;i++){
            btn[i] = new JButton(letters[f]+i,cup);
            System.out.println(btn[i]));
            mainGameWindow.add(btn[i]);
            btn[i].addActionListener(this);
            String StringCommand = Integer.toString(randomArrayNum());
            btn[i].setActionCommand(StringCommand);
            count++;
            if(count == 18){
                generateArray();
            }

        }

}

This is 6 × The 6 grid provides 36 buttons, namely a1-6, b1-6, C1-6, etc

Once I create a button in this way, I seem to have no control over the button. I can't assign an icon or get the name of the button

Thank you in advance

Solution

Keep the reference of the button in the map

String letters[] = {"0","f"};
JButton btn;
int count = 0;

HashMap<String,JButton> buttonCache = new HashMap<String,JButton>();


for (int f=1; f < 7;f++){

    for (int i=1; i < 7;i++){
        btn = new JButton(letters[f]+i,cup);
        mainGameWindow.add(btn[i]);
        btn.addActionListener(this);
        String stringCommand = Integer.toString(randomArrayNum());
        btn.setActionCommand(stringCommand);
        buttonMap.put(stringCommand,btn);
        count++;
        if(count == 18){
            generateArray();
        }

    }

}

Then, in actionlistener, get the button from the command:

public void actionPerformed(ActionEvent e) {
    String command = ((JButton) e.getSource()).getActionCommand();
    JButton button = buttonCache.get(command);
    if (null != button) {
        // do something with the button
    }
}

edit

Answer this again five years later. I don't know why I suggest using HashMap: P

This code is exactly the same. There is no third-party map:

String letters[] = {"0","f"};
int count = 0;

for (int f=1; f < 7;f++){
    for (int i=1; i < 7;i++) {
        String stringCommand = Integer.toString(randomArrayNum());
        Button btn = new JButton(letters[f]+i,cup);

        btn.setActionCommand(stringCommand);
        btn.addActionListener(this);
        mainGameWindow.add(btn[i]);

        // NOTE : I have no idea what this is for...
        count++;
        if(count == 18){
            generateArray();
        }
    }
}

In actionlistener

public void actionPerformed(ActionEvent e) {
    JButton button = (JButton) e.getSource();
    String command = button.getActionCommand();

    // do something with the button
    // the command may help identifying the button...
}