The DataSet class problem

Fill in the bodies of the methods in the following class. Then write a class TestDataSet with a static main method that creates

a DataSet, adds some values, and then prints out the statistics to System.out for verification.

/**

* Calculates statistical values on a data set where each item is

* entered individually.

*/

public class DataSet

{

/**

* Adds a value to the data set

*/

public void addValueToSet (double newValue)

{

}

/**

* Returns the sum of the values currently in the data set.

*/

public double getSum ()

{

}

/**

* Returns the average of the values currently in the data set.

* Precondition: At least one value has been added.

*/

public double getAverage ()

{

}

/**

* Returns the maximum value of all values currently in data s et.

* Precondition: At least one value has been added.

*/

public double getMaximum ()

{

}

}