arrayList access to Object's instance variables

[kavundamani senthil]

In the program below how can i access the fields bankName, accId from the object o ?

import java.util.*;
public class sorting {
String bankName ;
int accId;
public void addaccount(String bankName,int accId)
{
this.bankName = bankName;
this.accId = accId;
}
public static void main(String args[])
{
TreeSet t = new TreeSet();
sorting s = new sorting();
sorting s1 = new sorting();
s.addaccount("IndianBank",100);
s1.addaccount("IndianBank",99);
t.add(s);
t.add(s1);
Iterator it = t.iterator();
while(it.hasNext())
{
object o = it.next();}
}
}

[Paul Somnath]

public static void main(String args[])
{
TreeSet t = new TreeSet();
sorting s = new sorting();
sorting s1 = new sorting();
s.addaccount("IndianBank", 100);
s1.addaccount("IndianBank", 99);
t.add(s);
Iterator it = t.iterator();
while (it.hasNext())
{
sorting obj =(sorting) it.next();
System.out.println(obj.bankName);
System.out.println(obj.accId);
}
}