Java and Electronic Mail - Java - page 708

Program: MailReaderBean

Example 17-9 shows the complete MailReaderBean program. As the name implies, it can be
used as a bean in larger programs but also has a main method for standalone use. Clicking a
message displays it in the message view part of the window; this is handled by the
TreeSelectionListener called tsl .

Example 17-9. MailReaderBean.java
import import javax.mail.Address javax.mail.Address ;

import import javax.mail.Folder javax.mail.Folder ;

import import javax.mail.Message javax.mail.Message ;

import import javax.mail.Session javax.mail.Session ;

import import javax.mail.Store javax.mail.Store ;

import import javax.mail.internet.InternetAddress javax.mail.internet.InternetAddress ;

import import javax.swing.JFrame javax.swing.JFrame ;

import import javax.swing.JScrollPane javax.swing.JScrollPane ;

import import javax.swing.JSplitPane javax.swing.JSplitPane ;

import import javax.swing.JTextArea javax.swing.JTextArea ;

import import javax.swing.JTree javax.swing.JTree ;

import import javax.swing.event.TreeSelectionEvent javax.swing.event.TreeSelectionEvent ;

import import javax.swing.event.TreeSelectionListener javax.swing.event.TreeSelectionListener ;

/**
* Display a mailbox or mailboxes.
* This is a generic GUI component for displaying email.
*/
public

public class class MailReaderBean MailReaderBean extends extends JSplitPane {

private private static static final final long long serialVersionUID = 1L ;

private private JTextArea bodyText ;

/* Construct a mail reader bean with all defaults.
*/
public public MailReaderBean () throws throws Exception {

this this ( "imap" , "mailhost" , "user" , "*" , "/" );

}

/* Construct a mail reader bean with all values. */
public

public MailReaderBean (
String protocol ,
String host ,
String user ,
String password ,