我不断收到找不到符号的错误，我想念什么？

Question

我需要编写一个抽象的BankAccount类和一个可扩展BankAccount的SavingsAccount类。我花了很多钱，但在底部super.monthlyProcess（）;附近的行上却一直找不到符号错误。我该如何解决？我到底要在哪里宣布呢？当我运行BankAccount类时，效果很好。

public abstract class BankAccount{
//declares the class variables
    private double balance;
    private int num_deposits;
    private int num_withdraws;
    private double annualInterest;
    private double serviceCharges;

//Constructor with two arguments to initialize the balance and the annual interest rate
    public BankAccount(double balance, double annualInterest){
        this.balance=balance;
        this.annualInterest=annualInterest;
        this.num_deposits=0;
        this.num_withdraws=0;
        this.serviceCharges=0;
    }

//Method for deposits into the BankAccount
    public void deposit(double amount){
        balance+=amount;
        num_deposits++;
    }

//Method for withdrawals from the BankAccount
    public void withdraw(double amount){
        balance-=amount;
        num_withdraws++;
    }

//Method to calculate the monthly interest
    public void calcInterest(){
        double monthlyInterestRate=(annualInterest/12);
        double monthlyInterest= this.balance*monthlyInterestRate;
        balance+=monthlyInterest;
    }

//Method that deducts the monthly service charge and updates the balance
    public void monthlyProccess(){
        balance-=serviceCharges;
        calcInterest();
        num_deposits=0;
        num_withdraws=0;
        serviceCharges=0;
    }

//Getter and Setter for balance method
    public double getBalance(){
        return balance;
    }
    public void setBalance(double balance){
        this.balance=balance;
    }

//Getter and Setter for number of deposits
    public int getNum_deposits(){
        return num_deposits;
    }
    public void setNum_deposits(int num_deposits){
        this.num_deposits=num_deposits;
    }

//Getter and Setter for number of withdrawals
    public int getNum_withdraws(){
        return num_withdraws;
    }
    public void setNum_withdraws(int num_withdraws){
        this.num_withdraws=num_withdraws;
    }

//Getter and Setter for the Annual Interest
    public double getAnnualInterest(){
        return annualInterest;
    }
    public void setAnnualInterest(double annualInterest){
        this.annualInterest=annualInterest;
    }

//Getter and Setter for the monthly service charges
    public double getServiceCharges(){
        return serviceCharges;
    }
    public void setServiceCharges(double serviceCharges){
        this.serviceCharges=serviceCharges;
    }
}

-----------------------------------------------------------------------------------------------------------------------------------------------

public class SavingsAccount extends BankAccount{
    private boolean status;
    public SavingsAccount(double balance, double annualInterest){

//Initialize superclass constructor
        super(balance, annualInterest);
//Set the active status to true or false
        if(balance>=25){
            status=true;
        }
        else{
            status=false;
        }
    }

//withdraw() method to check if the account is active or inactive
    public void withdraw(double amount){
        if(status){
            super.withdraw(amount);
            if(super.getBalance()<25)
            status=false;
        }
        else{
            System.out.println("Amount cannot be withdrawn.");
        }
    }

//deposit() method to check if the account in active or inactive
    public void deposit(double amount){
        if(!status){
            double avail=super.getBalance()+amount;
            if(avail>=25){
                status=true;
            }
        }
        super.deposit(amount);
    }

//monthlyProcess() checks and sets a $1 service charge for withdraws and deposits greater than 4.
    public void monthlyProcess(){
        int countWithdraws=super.getNum_withdraws();
        if(countWithdraws>4){
            super.setServiceCharges(countWithdraws-4);
            super.monthlyProcess();
            if(super.getBalance()<25)
            status=false;
        }
    }

//Getter and Setter for the status
    public boolean isStatus(){
        return status;
    }
    public void setStatus(boolean status){
        this.status=status;
    }