Big Java example project "data"

You can use this project as follows:

 - invoke the main method of the driver class DataSetTest by right-clicking 
 on the class representation and selecting the main method.
 - interactively create a DataSet object
 - interactively add values to the DataSet
 - open the DataSet's inspection window and inspect its instance data
 - use the getAverage method

This project illustrates concepts covered in Big Java, Chapter 13 
"Array Lists and Arrays".
  
 - to become familiar with using array lists to collect objects 
 - to learn about common array algorithms 
 - to be able to use arrays 
 - to understand when to choose array lists and arrays in your programs 
 - to implement partially filled arrays 

