/** This program tests the DataSet class. */
public class DataSetTester {
   public static void main(String[] args) {
      DataSet bankData = new DataSet();

      bankData.add(new BankAccount(0));
      bankData.add(new BankAccount(10000));
      bankData.add(new BankAccount(2000));

      System.out.println("Average balance = " + bankData.getAverage());
      Measurable max = bankData.getMaximum();
      System.out.println("Highest balance = " + max.getMeasure());

      DataSet coinData = new DataSet();

      coinData.add(new Coin(0.25, "quarter"));
      coinData.add(new Coin(0.1, "dime"));
      coinData.add(new Coin(0.05, "nickel"));

      System.out.println("Average coin value = " + coinData.getAverage());
      max = coinData.getMaximum();
      System.out.println("Highest coin value = " + max.getMeasure());
   }
}



class BankAccount implements Measurable {
   private double balance;
   
   public BankAccount( double bal ) {
      balance = bal;
   }
   
   // other BankAccount methods: withdraw, deposit, getBalance, ...
   
   public double getMeasure() { return balance; }
}


class Coin implements Measurable {
   private double value;
   private String name;
   
   public Coin( double val, String n ) {
      value = val;
	  name = n;
   }
   
   // other Coin methods
   
   public double getMeasure() { return value; }
}