package org.kotoday.experiment.bank;

public class BankAccount {
    private double balance=0.0, interest=0.0, charges=0.0;
    private int deposits=0, withdrawals=0;

    BankAccount(double balance, double interest, double charges, int deposits, int withdrawls) {
        this.balance = balance;
        this.interest = interest;
        this.charges = charges;
        this.deposits = deposits;
        this.withdrawals = withdrawls;
    }

    protected void deposit(Double amount) {
        this.balance += amount;
        this.deposits++;
    }
    protected void withdrawal(Double amount) {
        this.balance -= amount;
        this.withdrawals ++;
    }

    protected void calcInterest() {
        double monthlyInterest = this.balance * (this.interest/12);
        this.balance += monthlyInterest;
    }

    public void monthlyProcess() {
        this.calcInterest();
        this.withdrawals = 0;
        this.charges = 0.0;
        this.deposits = 0;
    }

    void addServiceCharge(double amount) {
        this.charges += amount;
    }

    double getBalance() {
        return this.balance-this.charges;
    }

    int getWithdrawals() {
        return this.withdrawals;
    }

    public int getDeposits() {
        return this.deposits;
    }
}

package org.kotoday.experiment.bank;

public class SavingsAccount extends BankAccount {
    private boolean active = true;

    SavingsAccount(double balance, double interest, double charges, int deposits, int withdrawls) {
        super(balance, interest, charges, deposits, withdrawls);
    }
    @Override
    public void withdrawal(Double amount) {
        if (this.active) {
            super.withdrawal(amount);
            checkActivity();
        }
    }

    @Override
    public void deposit(Double amount) {
        super.deposit(amount);
        checkActivity();
    }

    @Override
    public void monthlyProcess() {
        if (this.getWithdrawals() > 4) {
            this.addServiceCharge(this.getWithdrawals());
            this.checkActivity();
        }
        super.monthlyProcess();
    }

    private void checkActivity() {
        this.active = !(this.getBalance() < 25.0);
    }
}

package org.kotoday.experiment.bank;

public class Driver {
    public static void main(String[] args) {
        SavingsAccount account = new SavingsAccount(1000,0.125, 0,0 ,0);
        account.deposit(35.0);
        account.monthlyProcess();
        System.out.print(account.getBalance());
    }
}