Anonymous

import java.util.List;import java.util.ArrayList;public class Bank{    List advisorList;    List bankAccountList;        public Bank()    {       this.advisorList = new ArrayList();       this.bankAccountList = new ArrayList();           }        public static Bank getInstance()    {    	return new Bank();    }        //* return an account by it's account number    public BankAccount getAccountByNumber(int accountNum)    {        for(int i=0; i< this.bankAccountList.size(); i++)        {               BankAccount check = (BankAccount) this.bankAccountList.get(i) ;               if(check.getAccountNumber() == accountNum)               {                   return check;               }        }        return null;    }        //* return an account by it's owners last name    public BankAccount getAccountByName(String lastName)    {        for(int i=0; i< this.bankAccountList.size(); i++)        {               BankAccount check = (BankAccount) this.bankAccountList.get(i);               List clients = check.getCustomerList();               for(Object o : clients)               {               		Customer c = (Customer) o;               		               		if(c.getLastName().equals(lastName))               		{               		    return check;             		}               }        }        return null;    }        //* deposit money into a BankAccount    public void deposit(BankAccount b, double amt)    {    	b.deposit(amt);    }        public void withdraw(BankAccount b, double amt)    {    	b.withdraw(amt);    }        public List showAdvisor()    {    	return advisorList;    }        public void addAdvisor(Advisor advisor)    {    	advisorList.add(advisor);    }        public void addBankAccount(BankAccount b)    {    	bankAccountList.add(b);    	    }   }