codice:
import java.net.*;
import java.io.*;
import java.sql.*;
import java.lang.*;

class serverChat implements Runnable{
    
String data = "jdbc:odbc:archivio";
String user;
private Socket connection;
private Thread me;
public serverChat (Socket s){
    connection = s;
    me=new Thread(this);
    me.start();
    System.out.println(connection);
}

public void run(){    
try {
    ObjectInputStream is;
    ObjectOutputStream os; 
boolean continua=true;   
while (continua==true) {    
    try{
            System.out.println("Inizio");
     is=new ObjectInputStream(connection.getInputStream());
            controllore = (int[])is.readObject();
            is.close();
            System.out.println(controllore[0]);
            //System.out.println("");
            System.out.println("Iniziato");
            
    }
    catch (Exception e){};
            switch (controllore[0]){
             case 1: 
                 boolean esci[] = new boolean[1];
                 esci[0]=false;
                 try{
                     System.out.println("eccoci al case 1");
                        System.out.println(esci[0]);
                      boolean[] esciLogin = new boolean[1];
                        esciLogin[0]=false;
                        while (esciLogin[0]!=true){
                          is = new ObjectInputStream(connection.getInputStream());
                            esci=(boolean[])is.readObject();
                            is.close();
                            if (esci[0]!=true){
                                is = new ObjectInputStream(connection.getInputStream());
                                UserPwd = (String[])is.readObject();
                                System.out.println("UserPwd: " + UserPwd[0] + " "+ UserPwd[1] + " " + UserPwd[2]);
                                if (ControllaPWD(UserPwd)==true){
                                    confrontoPWD[0]=true;
                                    esciLogin[0]=true;
                                    user=UserPwd[0];
                                }
                                else
                                    confrontoPWD[0]=false;
                                os = new ObjectOutputStream(connection.getOutputStream());
                                os.writeObject(confrontoPWD);
                            }else
                                esciLogin[0]=true;
                            System.out.println("");
                        }
                        

}