//this is a subclass of Account
class SavingsAccount extends Account
{
  private double intRate;
 
  public SavingsAccount(int idNum,double balance, double rate)
  {
   super(idNum,balance);
   intRate=rate;
  }
 
  public void withDraw(double amount)
  {
    decreaseBalance(amount); // calling super Account's method
   }
   
  public double monthlyInterest()
  {
    return (currentBalance()*(intRate/12.0));
  }   
  
  
  public String toString()
  {
    return "Savings account with interest rate.."+intRate+" "+super.toString();
   } 
     


}