Как получить число из jtextfield?

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JTextField textField = new JTextField();
String text = textField.getText();
int number = Integer.parseInt(text);

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

public class JTextFieldExample implements ActionListener {
    private JTextField textField;
    private JButton button;

    public JTextFieldExample() {
        JFrame frame = new JFrame("JTextField Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setLayout(new FlowLayout());

        textField = new JTextField(10);
        frame.add(textField);

        button = new JButton("Get Number");
        button.addActionListener(this);
        frame.add(button);

        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        new JTextFieldExample();
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == button) {
            String text = textField.getText();
            try {
                int number = Integer.parseInt(text);
                System.out.println("Number: " + number);
            } catch (NumberFormatException ex) {
                System.out.println("Invalid number");
            }
        }
    }
}