public abstract class BankBase {
    private int money;
    private int accountNum;
    private int startYear;
    private static int currentYear;
    public BankBase(int accountNum) {
        this.accountNum = accountNum;
        currentYear = startYear;
    }
    public BankBase(int money, int accountNum) {
        this.money = money;
        this.accountNum = accountNum;
        currentYear = startYear;
    }
    public void depositMoney(int deposit) {
        this.money += deposit;
    }
    public void paimentMoney(int payment) {
        if(this.money < payment) {
            System.err.println("預金額より多い出金をしようとしています.");
            return;
        }
        this.money -= payment;
    }
    public int getMoney() { return money; }
    public int getAccountNum() { return accountNum; }
    public int getStartYear() { return startYear; }
    public void setStartYear(int startYear) { this.startYear = startYear; }
    public static void setCurrentYear(int Year) { currentYear = Year; }
    public static int getCurrentYear() { return currentYear; }
    public abstract void addInterest();
}

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