Extract values from an object trapped in TreeMap

Question

I can't figure out how to get the balance of an account Object (consisting of name plus balance)which is stored in a TreeMap.
Normally it would go like this: For example
accounts[2].getBalance();
Normally would return the value for the specified account.
Can anybody help?
Thanks.
import java.util.*;
class Account
    private double theBalance    = 0.00;   // Balance of account
    private String theName       = "";
public static void main (String args[]) {
                Account accounts[] = new Account[4];
  TreeMap  accountsMap = new TreeMap();
  accountsMap.put( "0023", new Account( "Gordon", 100.0 ) );
  accountsMap.put( "0123", new Account( "James",  200.0 ) );
  accountsMap.put( "0001", new Account( "Edward", 300.0 ) );
  accountsMap.put( "7777", new Account( "Percy",  400.0 ) );
  BankStats  bs = new BankStats();
  LinkedList  r  = bs.accountsBelow( accountsMap, 250.0 );
  System.out.println(r);
    public Account( String name, double openingBalance )
      theBalance = openingBalance;
      theName    = name;
    public double getBalance()
      // assert theBalance >= 0.00;
      return theBalance;
    public String getName()
      return theName;
    public double withdraw( final double money )
      // assert theBalance >= 0.00;
      if ( theBalance >= money  )
        theBalance = theBalance - money;
        return money;
      } else {
        return 0.00;
    public void deposit( final double money )
      // assert theBalance >= 0.00;
      theBalance = theBalance + money;
class BankStats {
      public LinkedList accountsBelow (TreeMap accountsMap, double ammount) {
           LinkedList list1 = new LinkedList();     
         for (int i = 0; i < 10000; ++i) {    
           String no = Integer.toString(i);
           for (int z =0; no.length()<4 ; z++) {
                no= "0"+no;              
            if (accountsMap.get(no)!= null) { 
            System.out.println   (accountsMap.get(no));  // WANT TO GET THE BALANCE FOR THE ACC       OBJECT ASSOCIATED WITH THIS KEY (String no)
           if (accountsMap.get(no)< ammount) {
                             list1.add(accountsMap.get(no)); }
      return list1;}
      public LinkedList accountsBelowNotFrozen (Account accounts[], double ammount) {
           LinkedList list2 = new LinkedList();     
         for (int i = 0; i < accounts.length; ++i) {    
           String nam = accounts.getName();
if (accounts[i] != null) {       
if (accounts[i].getBalance() < ammount & !nam.endsWith("[Frozen]")) {
          list2.add(accounts[i]); } } }
     return list2;}

Answer 1

Use this method call to retrieve the balance (or anything else):
Account acc = (Account) accountsMap.get(no)
double bal = acc.getBalance();or simply:
double bal = ((Account) accountsMap.get(no)).getBalance();