I wrapped up learning of basic Java with functions and classes. I solved the making change challenge, and then started with the basics of classes

Java Exercises 3:
https://docs.google.com/document/d/1PmvE6EU7oERSd3UfMfoDePtp28jp0pxIN1MxTys7rdE/edit
Java Exercises 4:
https://docs.google.com/document/d/1UGq3Y2FchT851aTw1CJX_KKkB5Uvg0YRv4Kyal7qQcA/edit