ActionListener-跟踪是否在actionPerformed方法内部调用actionPerformed？

Question

Say I have a 'Select' JButton with SelectPieceListener. I want to check if the action(clicking Select Button) is performed again or not. However, actionPerformed is void, so I cannot use it as boolean expression.

Is there any way to do that? Or is it better to use another JButton to handle this?

Thank you.

public class SelectPieceListener implements ActionListener {
    @Override
    public void actionPerformed(ActionEvent e) {
        if(c == _st.checkMoveImpossible()) {
            System.out.println("No possible move for "+nextPlayer+": click select to skip turn, " +
                    "or click right to move " + t + " pieces.");

            if(**the action is performed**){_board.setcmi(1);}
            _board.update();
        }

Answer 1

Do you want to know if the select button has been clicked once already (1) ? Or do you want to make sure the actionPerformed method isn't called recursively (2)?

(1) Simply add a boolean field to SelectPieceListener called 'selectPressed' (or whatever), and set it to true when actionPerformed is called.

(2) No worries, you don't seem to call it manually.