Clicking on one of the link from multiple option present in the file using selenium (Java)

Clicking on one of the link from multiple option present in the file using
selenium (Java)

I have one file to read as below
contains a @href ENVIRONMENT*somexyzsite=####
contains a @href javascript:XYZ VolunteerRegistration
contains a @href javascript:ABC VolunteerNavigation %20 REGISTRATION_LINK
contains a @href javascript:PQR VolunteerNavigation VOL_REGISTRATION_LINK
= a @title New Volunteer Signup
After loading a particular webpage I need to go to one of the registration
link mention above. I also need to check the links specified above are
applicable to that webpage or not? ANd if its applicable then I need to
navigate to that link
I don't understand how can we proceed with this using webdriver Can anyone
help me get to start with this function?