Big Java & Java Concepts example project "mergesort"

You can use this project as follows:

 - invoke the main method of the driver class MergeSortTester by 
 right-clicking on the class representation and selecting the main method.
 - interactive create objects.
 - interactively call methods to test.

This project illustrates concepts covered in Big Java & Java Concepts, Chapter 19 
"Sorting and Searching".

 - to study the several searching and sorting algorithms
 - to appreciate that algorithms for the same task can differ widely in performance
 - to understand big-Oh notation
 - to learn how to estimate and compare the performance of algorithms
 - to learn how to measure the running time of a program