You can download the completed task here:http://wikisend.com/download/268524/DoubleSort.zip
Unzip the file and you will find the java file, the compiled class, and a Microsoft Word document.
In the Microsoft Word document is a screen shot of the program functioning. I am sending you this because your request states that you are to provide evidence of the project working.
If you would like to run the application yourself, you must compile it and run it like this:javac DoubleSort.javajava DoubleSort
Those are command-line arguments for compiling and running a Java program. Doing this requires that you have already set up JDK and have Java on your system path variables. This would have been part of the set up at the very beginning of your course.
I included exception handling, which your instructor should greatly appreciate. Good programs have exception handling.
I have also fully commented the code for your benefit and because instructors tend to require it.
Let me know if you have any questions at all. I'm here to help.
If you ever need assistance in the future, please feel free to request me directly by starting your questions with **For TheDoctor**.
Please remember to rate my answer. Thank you so much and have a wonderful day!