public class BankAccount {

  private int balance = 0;
  private int id = 0;

  public int getBalance() {
    return balance;
  }

  public void deposit(int amount) {
    System.out.println("Depositing " + amount + "$ into account " + id);
    balance = balance + amount;
  }

  public void withdraw(int amount) {
    System.out.println("Withdrawing " + amount + "$ from account " + id);
    balance = balance - amount;

  }

  private static int idCounter = 0;

  public static BankAccount openAccount() {
    BankAccount newAccount = new BankAccount();
    newAccount.id = idCounter++;
    System.out.println("Created new account with Id = " + newAccount.id);
    return newAccount;
  }

  //  public BankAccount() {
  //}

  //public BankAccount() {
  //  id = idCounter++;
  //  System.out.println("Created new account with Id = " + id);
  //}

}