Как просканировать JTextField&?

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Scanner;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.JTextField;
public class Pupcin extends JFrame {
    Scanner sc;
    JTextArea textArea;
    String s;
    eHandler h = new eHandler();
    JButton b1;
    JTextField textField;
    public Pupcin(String a) {
        super("Top Stop");
        JPanel p1 = new JPanel ();
        p1.setSize(200,300);
        textField = new JTextField("Ваше сообщение", 20);
        textField.setCaretColor(Color.GREEN);
        textField.setHorizontalAlignment(JTextField.LEFT);

        textArea = new JTextArea(5, 20);
        textArea.setLineWrap(true);
        textArea.setWrapStyleWord(true);
        b1 =  new JButton("Ввод");
        b1.setSize(30,50);
        b1.setLocation(100, 200);
        getContentPane().add(textField, BorderLayout.NORTH);
        getContentPane().add(textArea);
        textField.add(b1);
        add(p1);
        p1.add(b1);
        b1.addActionListener(h);
        pack();         
    }
    public class eHandler implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            if(e.getSource() == b1) {
               sc = new Scanner( (Readable) textField);
               s = sc.nextLine();
              textField.setText(textField.getText() + s);
            }
        }
    }
    public static void main (String args[]) {
        Pupcin win =new Pupcin ("Lalaland");
        win.setVisible(true);
        win.setSize(400,500);
        win.setLocationRelativeTo(null);
        win.setDefaultCloseOperation(EXIT_ON_CLOSE);
    }
}