Miscellany

import java.util.*;/** * Java Messenger Server v1.04B *  * @author Jerediah Fevold * @version 6 June 2007 */public class Server {    Map buddyMap;    TreeSet buddySet;    /**     * Constructor for objects of class Server     */    public Server()    {        buddyMap = new TreeMap();        buddySet = new TreeSet();    }        public int addUser(String name, String password)    {        if ( name.length() < 4 || name.length() > 10 )        {            return 1;        }        if ( password.length() < 2 || password.length() > 10 )        {            return 2;        }        if ( buddyMap.containsKey(name.toLowerCase()) )        {            return 3;        }                buddyMap.put(name, password);                return 0;            }        public int login(String name, String password)    {                MsgUser buddy = new MsgUser(Server.this, name, password);                if ( !buddyMap.containsKey(name.toLowerCase()) )        {            return 1;        }        if ( !buddyMap.get(name.toLowerCase()).equals(password) )        {            return 2;        }        if ( buddySet.contains(buddy))        {            return 3;        }                 buddySet.add(buddy);                Iterator it = buddySet.iterator();        while ( it.hasNext() )        {            MsgUser user = (MsgUser)(it.next());            Iterator it1 = buddySet.iterator();            while ( it1.hasNext() )            {                MsgUser user2 = (MsgUser)(it1.next());                if ( !user.buddySet.contains(user2))                    user.addBuddy(user2);            }        }                        buddy.openDialog(buddySet);                Iterator it2 = buddySet.iterator();        while ( it2.hasNext() )        {            MsgUser user3 = (MsgUser)it2.next();            Iterator it3 = user3.buddySet.iterator();            while ( it3.hasNext() )            {                MsgUser user4 = (MsgUser)it3.next();                System.out.println( (user4.toString()) );            }        }                return 0;                //add all previously logged in users to buddy lists of each user in set    }        public void logout(MsgUser u)    {        buddySet.remove(u);        Iterator it = buddySet.iterator();        while( it.hasNext() )        {            MsgUser user = (MsgUser)it.next();            user.removeBuddy(u);        }    }    }import java.util.*;/** * MsgUser 1.4A *  * @author Jerediah Fevold * @version 6 June 2007 */public class MsgUser implements Comparable{    Server userServer;    String userName;    String userPassword;    TreeSet buddySet;    MsgWindow myWindow;    /**     * Constructor for objects of class MsgUser     */    public MsgUser(Server server, String name, String password)    {        buddySet = new TreeSet();        userServer = server;        userName = name;        userPassword = password;    }        public String toString()    {        return userName;    }        public String getPassword()    {        return userPassword;    }        public boolean equals(Object other)    {        if( userName.toLowerCase().equals(other.toString().toLowerCase()) )            return true;                return false;    }        public int compareTo(Object other)    {        return other.toString().compareToIgnoreCase(userName);    }        public void openDialog(Set buddies)    {        myWindow = new MsgWindow(MsgUser.this, buddies);    }        public void addBuddy(MsgUser u)    {       buddySet.add(u);    }        public void removeBuddy(MsgUser u)    {       buddySet.remove(u);    }        public void receiveMessage(String text)    {        myWindow.showMessage(text);    }        public void quit()    {        userServer.logout(MsgUser.this);    }       }