import java.util.Scanner;

public class RunSavingsAccount {

    public static void main(String[] args) {

        Scanner input = new Scanner(System.in);

        SavingsAccount savings = new SavingsAccount();

  
        System.out.print("Enter interest rate: ");
        double rate = input.nextDouble();

     
        SavingsAccount.setInterestRate(rate);

       
        System.out.print("Enter amount to deposit: ");
        double amount = input.nextDouble();

        savings.deposit(amount);

       
        SavingsAccount.showBalance(savings);

       
        System.out.print("Press D for another deposit or W for withdrawal: ");
        char choice = input.next().charAt(0);

        if (choice == 'D' || choice == 'd') {

            System.out.print("Enter amount to deposit: ");
            amount = input.nextDouble();

            savings.deposit(amount);

        } else if (choice == 'W' || choice == 'w') {

            System.out.print("Enter amount to withdraw: ");
            amount = input.nextDouble();

            savings.withdraw(amount);
        }


        SavingsAccount.showBalance(savings);


        if (savings.getBalance() > 1000) {

            savings.addInterest();

            System.out.println("Interest added.");
            SavingsAccount.showBalance(savings);
        }

        input.close();
    }
}


class SavingsAccount {

    private double balance;
    public static double interestRate = 0;

    public SavingsAccount() {
        balance = 0;
    }


    public static void setInterestRate(double newRate) {
        interestRate = newRate;
    }

    
    public static double getInterestRate() {
        return interestRate;
    }

   
    public double getBalance() {
        return balance;
    }

   
    public void deposit(double amount) {
        balance = balance + amount;
    }

   
    public void withdraw(double amount) {
        if (balance >= amount) {
            balance = balance - amount;
        } else {
            amount = 0;
        }
    }
   
    public void addInterest() {
        double interest = balance * interestRate;
        balance = balance + interest;
    }

    public static void showBalance(SavingsAccount account) {
        System.out.printf("Current balance: %.2f%n", account.getBalance());
    }
}