java swing，从ActionListener获取价值

Question

I wanted to click on a button and have a pop up window where i can enter a string and that string will be outputted in the label, but i can't manage to return the string.

    JButton btnName = new JButton("Name");
    btnName.addActionListener(new ActionListener() {
        String name;
        public void actionPerformed(ActionEvent e) {
            name = JOptionPane.showInputDialog("enter your name");
        }
    });
    btnName.setBounds(10, 11, 89, 23);
    frame.getContentPane().add(btnName);
    JLabel lblPerson = new JLabel(name);
    lblPerson.setFont(new Font("Tahoma", Font.PLAIN, 36));
    lblPerson.setBounds(10, 188, 414, 63);
    frame.getContentPane().add(lblPerson);`

I don't know how to return the String name from the ActionListener class so i obviously have an error at line 10.

Answer 1

Just use JLabel.setText

    public void actionPerformed(ActionEvent e) {
        name = JOptionPane.showInputDialog("enter your name");
        lblPerson.setText(name);
    }

Another way you can do this is by creating (Abstract)Action inner classes in your class, which you do using JButton.setAction(MyAction);