public class Checking extends Account
{
    public Checking(int accountNum)
    {
        super(accountNum);
    }

    public void display()
    {
        System.out.println("Checking Account Information:\n account number:" + this.getAccountNum() +
            " \nBalance: " + this.getBalance());
    }

    int getAccountNum()
    {
        return accountNum;
    }

    double getBalance()
    {
        return balance;
    }
}