public class Bank{
  private CheckingAccount accountOne;
  private CheckingAccount accountTwo;

  public Bank(){
    accountOne = new CheckingAccount("Zeus", 100, "1");
    accountTwo = new CheckingAccount("Hades", 200, "2");
  }

  public static void main(String[] args){
    Bank bankOfGods = new Bank();
    bankOfGods.accountOne.setBalance(5000);
    System.out.println(bankOfGods.accountOne.getBalance());
  }

}

//other file with private classes
public class CheckingAccount{
  private String name;
  private int balance;
  private String id;

  public CheckingAccount(String inputName, int inputBalance, String inputId){
    name = inputName;
    balance = inputBalance;
    id = inputId;
  }

  //Write new methods here:
    public int getBalance() {
    return balance;
  }

    public void setBalance(int newBalance) {
    balance = newBalance;
  }



}