1. Using UML Lab, create a UML model from the source code. Include a printout of the generated class diagram.
2. Implement the following changes:
   1. Change the login button of the Admin to red and the button of the Librarian to green (in the main form when running Library.java)
   2. Change the Admins password to admin111.
   3. Remove View Issued Books from the Librarians main options.
   4. Increase width of the text fields of the Add Books form.
   5. Check that the email field contains the symbol @ in the Add Librarian form used by the Admin.

For each change, include a printout of the modified code.

Draft a plan for one of the changes mentioned above. The plan should be based on the Change Mini-Cycle model discussed in the class