Simple family tree GUI

Design and implement (in Java) a basic graphical user interface (GUI) program for recording information about a family tree. You can assume that a family member has some immediate relatives: i.e., a mother and father (maybe unknown), zero or one spouses, zero or more children and zero or more grandchildren. A family member also has a first name, a surname at birth, a surname after marriage, gender, an address and a paragraph of text describing what is known about their life. Obviously, this is a simplified version of reality. An address has a street number, street name, suburb and postcode. A family tree contains this information for a whole bunch of related people. The program can be started in editing mode or viewing mode. In viewing mode, the GUI shows details for one person at a time. A family tree will have specified starting person. So if the person has parents and children and grandchildren, the family tree should show the parents (you do not need to show the grandparents or beyond; that means only one level up in the tree) and all descendants on a single page (in a sort of hierarchy so that the people at the same level are together; do not worry about the real look of a tree, a text box is fine). From the GUI the user will be able to change the displayed person to (display) one of the immediate relatives of the current person. In editing mode, the user can choose to start a new empty family tree or edit an existing one. A new family member can be added as an immediate relative of an existing person or the names, address, or text for an existing person can be changed. It is not necessary for this basic software to allow the user to be able to link an already existing person in a new role, eg as the mother of another already existing person. The software should allow a user to conveniently enter their own family tree and have it stored for subsequent editing and viewing. Set up a couple of demonstration family trees which you submit and give clear instructions in the User Guide for use of those family trees. Note that your program should compile and run under Java SE 8 and NetBeans IDE. Please note, you need to use the major items such as serialization, JavaFX components, FileChooser, and Exception handling.