LB Thomas rated OCP Oracle Certified Professional Java SE 11 Developer Complete Study Guide: 4 stars July 4, 2013 Public Jeanne Boyarsky, Scott Selikoff: OCP Oracle Certified Professional Java SE 11 Developer Complete Study Guide (2020, Wiley & Sons, Incorporated, John)OCP Oracle Certified Professional Java SE 11 Developer Complete Study Guide by Jeanne Boyarsky, Scott Selikoff