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Modifying DataSet for Coins

public class DataSet // modified for Coin objects
{
. . .
public void add(Coin x)
{
sum = sum + x.getValue();
if (count == 0
|| maximum.getValue() < x.getValue())
maximum = x;
count++;
}

public Coin getMaximum()
{
return maximum;
}

private double sum;
private Coin maximum;
private int count;
}


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