get position of the button on gridlayout

Question

How to get position(I mean row and column) of the clicked button with gridlayout?

public void init(final Container pane) {
    JPanel controls = new JPanel();
          


        

Answer 1

In this case, you don't even have to search for the indices, because you know them when the button is created:

for (int i = 0; i < puzzle.getSize(); i++) {
    int k = puzzle.getListItem(i);
    if (k == puzzle.getEmptyFlag())
        controls.add(new JLabel(""));
    else {
        JButton jb = new JButton(String.valueOf(k));

        final int rowIndex = i / size;
        final int columnIndex = i % size;

        // Using an ActionListener, as Hovercraft Full Of Eels already told you:
        jb.addActionListener(new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent e) {
                System.out.println("rowIndex "+rowIndex+" columnIndex "+columnIndex);
            }

        });
        controls.add(jb);
    }
}