the process is the same in every country. You go to the Pearson VUE website
http://www.pearsonvue.com/oracle/ Log in or create an account, click on Proctored Exams, type "Java SE" in the Find an Exam field and klick "Go". Then choose the right exam version and follow the instructions. You'll be given a list of the test centers near your position. You can call, using the phone numbers, you see and ask them about the conditions like how much people are in the same room, does they have a locked drawer for your things and so on. Then you choose the test center and will have a list of time points. You choose a time point and register for the exam, using your exam voucher code.