Thread: Text inside Text Field

Hello guys.

I have the following code:

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
 
public class TextFieldDemo extends JPanel implements ActionListener {
    protected JTextField textField;
    protected JTextArea textArea;
    private final static String newline = "\n";
 
    public TextFieldDemo() {
        super(new GridBagLayout());
 
        textField = new JTextField(129);
        textField.addActionListener(this);
 
        textArea = new JTextArea(43, 129);
        textArea.setEditable(true);
        JScrollPane scrollPane = new JScrollPane(textArea);
 
        //Add Components to this panel.
        GridBagConstraints c = new GridBagConstraints();
        c.gridwidth = GridBagConstraints.REMAINDER;
 
        c.fill = GridBagConstraints.HORIZONTAL;
        add(textField, c);
 
        c.fill = GridBagConstraints.BOTH;
        c.weightx = 1.0;
        c.weighty = 1.0;
        add(scrollPane, c);
    }
 
    public void actionPerformed(ActionEvent evt) {
        String text = textField.getText();
        textArea.append(text + newline);
        textField.selectAll();
 
        //Make sure the new text is visible, even if there
        //was a selection in the text area.
        textArea.setCaretPosition(textArea.getDocument().getLength());
    }
 
    /**
     * Create the GUI and show it.  For thread safety,
     * this method should be invoked from the
     * event dispatch thread.
     */
    private static void createAndShowGUI() {
        //Create and set up the window.
        JFrame frame = new JFrame("Passwords");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 
        //Add contents to the window.
        frame.add(new TextFieldDemo());
 
        //Display the window.
        frame.pack();
        frame.setVisible(true);
    }
 
    public static void main(String[] args) {
        //Schedule a job for the event dispatch thread:
        //creating and showing this application's GUI.
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
            }
        });
    }
}

Which will print this out:

test.jpg

1. Now, my question is, how can i make this text box to contain information (lets say a chapter of a book).
2. As you can see there is a small box in top of the big one that will allow me to insert any text that I type, lets say that I manage to add the chapter of the book as I mentioned in the first one, how can I insert a line to this text box and it will be saved to my code, so when I open it again it will show me what I typed.

Thanks.