Question $2$

Extend the solution in Question $1,$ to add another class named RegistrationListWriter th$$t pr$$duceses $$n XML$-$formalted RegistrationList using DOM as follows:Note: $..$ means data has to be filled in based on the Registration objects in the RegistrationList.

Modify the GUI in Question $1,$ to give the user an option to save the registration list. Allaw the user to choose the file, using the standard file dialog, where the XML formatted registration list should be saved.