The assignment itself is 2007S2C.pdf. Read it thoroughly before starting.

The file sd.jar is for Q1. It is a Java archive containing many .class files.
From the command line, enter "java -jar sd.jar" to run the application inside it.

The files choosesongs-sample-* are sample input and output for Q2. 
The -output file gives the output generated by my answer to the question when 
called with the command "java ChooseSongs choosesongs-sample-input 3".