Using Classes within Vector

Question

ok,
I writing a bank program where a user types in a string which is then broken into tokens. The tokens are separated using .nextToken( ) and the first token is used to determine what command the user wants to perform.
My problem is that I am trying to place a class that Ive created within the vector and I cant seem to be able to get the tokens into the right place or retrieve them when they are needed.
Here is what I have so far, ps I am very new to java.
Project3Functions func = new Project3Functions();
Vector vect = new Vector();
do
String firstLine = func.getLineInput();
StringTokenizer tok = new StringTokenizer(firstLine," ");
String hold = tok.nextToken();
if(hold.equals("newAccount"))
int index = Integer.parseInt(tok.nextToken());
vect.setSize(index);
vect.add(index, new Account());
vect.add(index, Account.firstname = tok.nextToken());
vect.add(index, Account.lastname = tok.nextToken());
System.out.println("a new account was created");
public class Account
static String firstname = "";
static String lastname = "";
I am trying to create a new Account in the position <index> within the vector but I dont think Im referencing firstname and lastname correctly. Also how would I get firstname and lastname out of the vector to print them on the screen?
Please someone help me.

Answer 1

Don't use static fields in Account - that means that they are shared by all instances. Try something like:
if(hold.equals("newAccount"))
  int index = Integer.parseInt(tok.nextToken());
  vect.setSize(index); // be careful! if index < size, then you will lose elements
  Account acct = new Account();
  acct.firstname = tok.nextToken();
  acct.lastname = tok.nextToken();
  vect.add(index, acct);
  System.out.println("a new account was created");
public class Account
String firstname = "";  //consider using get and set methods
String lastname = "";
}To get the data out,Account acct = (Account) vect.get(index);
System.out.println("firstname = " + acct.firstname + ", lastname = " + acct.lastname);