import java.io.*;
public class SavingsAccount
{
    private float balance;
    double interestRate = 0.004;

    public float getBalance(){
        return balance;
    }

    public float addInterest() {
        double interest = interestRate * balance;
        balance += (float)interest;
        return balance;
    }

    public void makeDeposit(float depositAmount) {
        balance += depositAmount;
    }

    public SavingsAccount() {
        balance = 0;
    }

    public SavingsAccount(float initialBalance) {
        balance = initialBalance;
    }
}