public class CurrencyConverter
{

 	private double exchangeRate;

   	public CurrencyConverter( double rate )
   	{
       	exchangeRate = rate;
   	}

   	public double fromDollar( double dollar )
   	{
      	return (dollar * exchangeRate);
   	}


   	public double toDollar( double foreignMoney )
   	{
      	return (foreignMoney / exchangeRate);
   	}

   	public void setExchangeRate( double rate )
   	{
      	exchangeRate = rate;
   	}
}