On the 18th, January 2021, I passed my "Oracle Certified Professional: Java SE 11 Developer" certification. And this post is all about what i did to prepare for it.

Old Rules

So I started my journey to get certified in Java 11 to receive Oracle Certified Professional Java SE 11 Developer credentials. Before 1st, October 2020, it was fairly a two-step process:

• Take a 815 exam Post 1st, October 2020, it is displaying a 404.
• And a 816 exam Post 1st, October 2020, it is displaying a 404.

Both were for 11,300 INR each and covers a different set of the syllabus.

You have to purchase the exam voucher from Oracle for each one of these. The voucher will be valid for the next 6 months. And during this period, you can schedule the exam anytime.

I did that too, but then...

Oracle did it again!!

And as if 2020 was less weird, Oracle discontinued Java certification test 815 and 816. And in place of it, Java Test 819 was introduced.

Few features of this new exam

• It is a 90 min exam as compared to 180 min ( for 815 and 816 each ).
• The total number of questions is reduced to 50, and you need to mark 34 questions correctly to pass.
• It costs approximately 18,538 INR plus taxes.
• Covers almost all the topics from exam 815 and 816, with few exceptions. Check out the 819 links for a detailed syllabus.
• You will receive "Oracle Certified Professional: Java SE 11 Developer" as Oracle recognition.

Important Topics

Below is the list for some of important topics and resources that is used to prepare them. Apart from these Youtube helped me a lot in understanding quickly and visualizing a lot of stuff.

Stream, Lambdas and Functional Interfaces

• Streams, Lambdas, Functional Interfaces
• Stream API Java 8
• Stream Operations
• Stream Tutorial
• Processing Data with Java SE 8 Streams
• Method detail of Object class

Secure Coding in Java SE Application

• Oracle Secure Coding Guide

Mock Tests

• Enthuware 819 Mock Test
• Java Certification (1Z0-815) Topic-wise Tests [2020]
• Java Certification (1Z0-815) Exam Simulation [2020]
• Java SE Programmer II (1Z0-816) - Practice Test
• Java SE 11 free test trial

Helpful resources from Oracle

• 815 and 816 Study Guide and Sample Questions
• List of Java Features Added from Java 8 to Java 14
• Java Quizzes
• More than 6 hours of free training by Oracle Universtity

Github Resources from my fellow wanderers

• Contains examples and 8008 dumps
• Java Certification 815
• 808, 809 and older PDF files
• OCA and OCP/808 and 809
• All about modules - some handy modules command-lines

OCP 819 Stories

• Enthuware
• Jeanne Boysky
• Scot Selikoff

Coderanch

• OCJCP Page
• OCJCP Wall Of Fame
• OCP 11 FAQ

Most recommended!

• Selikof/Boyarsky book ( Oracle Certified Professional: Java SE 11 Developer : Complete Study Guide)
• Enthuware 819 Mock Test

Java Code in my respository

• Basic : Inheritance, Arrays, Final, Initialization, Overloading, Overriding, Primitives, etc.
• Advanced : Annotations, Collections, Concurrency, Enums, Exceptions, Functional Interfaces, Generics, Inner Classes, NIO2, etc
• Streams