Thread: Need help with putting restraints on my text area.

my code works its just that my textarea in my message box runs out of my set window.

 
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
 
public class Email extends JFrame implements ActionListener {
	private JTextField toField;
	private JTextField ccField;
	private JTextField bccField;
	private JTextField subjectField;
	private JTextArea message;
	private JButton send;
	private JButton clear;
 
 
	public Email() {
		send = new JButton("SEND");
		clear = new JButton("CLEAR");
		toField = new JTextField(40);
		ccField = new JTextField(40);
		bccField = new JTextField(40);
		subjectField = new JTextField(40);
		message = new JTextArea(20,30);
		message.setPreferredSize(new Dimension(10,20));
		JPanel toPanel = new JPanel(new BorderLayout());
		JPanel ccPanel = new JPanel(new BorderLayout());
		JPanel bccPanel = new JPanel(new BorderLayout());
		JPanel subjectPanel = new JPanel(new BorderLayout());
		JPanel messagePanel = new JPanel(new BorderLayout());
		toPanel.add(new JLabel("To:"), BorderLayout.WEST);
		toPanel.add(toField, BorderLayout.EAST);
		ccPanel.add(new JLabel("CC:"), BorderLayout.WEST);
		ccPanel.add(ccField, BorderLayout.EAST);
		bccPanel.add(new JLabel("BCC:"), BorderLayout.WEST);
		bccPanel.add(bccField, BorderLayout.EAST);
		subjectPanel.add(new JLabel("Subject:"), BorderLayout.WEST);
		subjectPanel.add(subjectField, BorderLayout.EAST);
		messagePanel.add(new JLabel("Message:"), BorderLayout.WEST);
		messagePanel.add(message, BorderLayout.SOUTH);
		JPanel layout = new JPanel(new GridLayout(5,1));
		layout.add(toPanel);
		layout.add(ccPanel);
		layout.add(bccPanel);
		layout.add(subjectPanel);
 
		JPanel buttonPanel = new JPanel(new GridLayout(1,0));
		send.addActionListener(this);
		clear.addActionListener(this);
		buttonPanel.add(send);
		buttonPanel.add(clear);
 
		add(layout, BorderLayout.NORTH);
		add(messagePanel, BorderLayout.CENTER);
		add(buttonPanel, BorderLayout.SOUTH);		
 
	}
 
	public void actionPerformed(ActionEvent event) {
 
 
		try{		
			if(event.getSource() == send) {
 
				if(toField.getText().contains("@")) {
 
					PrintWriter writer = new PrintWriter("email.txt");
					writer.println("To: " + toField.getText());
					writer.println("CC: " + ccField.getText());
					writer.println("BCC: " + bccField.getText());
					writer.println("Subject: " + subjectField.getText());
					writer.println("Message: " + message.getText());
					writer.close();
					JOptionPane.showMessageDialog(null, "MESSAGE SENT!");
					toField.setText("");
					ccField.setText("");
					bccField.setText("");
					subjectField.setText("");
					message.setText("");
				}
				else
					JOptionPane.showMessageDialog(null, "Please enter a receipient!");
			}
		}
		catch(IOException e) {
		}	
		if(event.getSource() == clear) {
			toField.setText("");
			ccField.setText("");
			bccField.setText("");
			subjectField.setText("");
			message.setText("");
		}
	}
 
 
 
	public static void main(String[] args) {
        Email win = new Email();
        win.setPreferredSize(new Dimension(500,500));
		win.setResizable(false);
		win.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        win.pack();
        win.setVisible(true);
    }
}