Books
OCA: Oracle Certified Associate Java SE 8 Programmer I Study Guide
2014
OCP: Oracle Certified Professional Java SE 8 Programmer II Study Guide
2015
OCP Oracle Certified Professional Java SE 11 Developer Complete Study Guide
2020
OCP Oracle Certified Professional Java SE 17 Developer Study Guide
2022
OCP Oracle Certified Professional Java SE 11 Programmer I Study Guide
2019
OCP Oracle Certified Professional Java SE 11 Developer Practice Tests
2021