# My attempt for Java 11 Certification 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](https://education.oracle.com/java-se-11-developer/pexam_1Z0-819) 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](https://www.linkedin.com/learning/functional-programming-with-streams-in-java-9) - [Stream API Java 8](https://docs.oracle.com/javase/8/docs/api/java/util/stream/Stream.html) - [Stream Operations](https://docs.oracle.com/javase/8/docs/api/java/util/stream/package-summary.html#StreamOps) - [Stream Tutorial](https://www.baeldung.com/java-8-streams) - [Processing Data with Java SE 8 Streams](https://www.oracle.com/technical-resources/articles/java/ma14-java-se-8-streams.html) - [Method detail of Object class](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html) ### Secure Coding in Java SE Application ![exploits_of_a_mom.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1630406533601/mZeEEI2Ml.png) - [Oracle Secure Coding Guide](https://www.oracle.com/java/technologies/javase/seccodeguide.html#9) ### Mock Tests - [Enthuware 819 Mock Test](https://enthuware.com/java-certification-mock-exams/oracle-certified-professional/ocp-java-11-exam-1z0-819) - [Java Certification (1Z0-815) Topic-wise Tests [2020]](https://www.udemy.com/course/java-11_1z0-815/) - [Java Certification (1Z0-815) Exam Simulation [2020]](https://www.udemy.com/course/java-se-11_1z0-815/) - [ Java SE Programmer II (1Z0-816) - Practice Test](https://www.udemy.com/course/java-se-programmer-ii-1z0-816-practice-test/) - [Java SE 11 free test trial](https://certify.cybervista.net/products/oracle/java-se-11-programmer-i-ocp-free-trial/) ### Helpful resources from Oracle - [815 and 816 Study Guide and Sample Questions](https://www.oracle.com/a/ocom/img/dc/ww-java11-programmer-study-guide.pdf?intcmp=WWOUCERTBLOGECBYK051720) - [List of Java Features Added from Java 8 to Java 14](https://ondro.inginea.eu/index.php/new-features-between-java-8-and-java-14/) - [Java Quizzes](https://blogs.oracle.com/javamagazine/quiz-2) - [More than 6 hours of free training by Oracle Universtity](https://learn.oracle.com/ols/module/overview/40805/79727) # Github Resources from my fellow wanderers - [Contains examples and 8008 dumps](https://github.com/springapidev/java-certification) - [Java Certification 815](https://github.com/mariazevedo88/java-certification-oca) - [808, 809 and older PDF files](https://github.com/MohamedDhiaJemai/Books-to-Prepare-Oracle-Java-Certification-Exams) - [OCA and OCP/808 and 809](https://github.com/egenerat/java-8-certification) - [All about modules - some handy modules command-lines](https://github.com/boyarsky/sybex-1Z0-815-chapter-11) # OCP 819 Stories - [Enthuware](https://enthuware.com/oca-ocp-java-certification-resources/255-java-certification-819-experience) - [Jeanne Boysky](https://www.selikoff.net/2020/09/26/jeannes-experience-taking-the-1z0-819-in-the-time-of-covid-19/) - [Scot Selikoff](https://www.selikoff.net/2020/10/06/taking-the-1z0-819-exam-study-everything-and-watch-the-clock-part-2-of-2/) # Coderanch - [OCJCP Page](https://coderanch.com/f/24/java-programmer-OCPJP) - [OCJCP Wall Of Fame](https://coderanch.com/wiki/659976/OCPJP-Wall-Fame) - [OCP 11 FAQ](https://coderanch.com/wiki/707568/certification/OCP-FAQ) # Most recommended! - Selikof/Boyarsky book ( Oracle Certified Professional: Java SE 11 Developer : Complete Study Guide) - [Enthuware 819 Mock Test](https://enthuware.com/java-certification-mock-exams/oracle-certified-professional/ocp-java-11-exam-1z0-819) # Java Code in my [respository](https://github.com/ravi2519/JavaCertification) - [Basic](https://github.com/ravi2519/JavaCertification/tree/master/basics) : Inheritance, Arrays, Final, Initialization, Overloading, Overriding, Primitives, etc. - [Advanced](https://github.com/ravi2519/JavaCertification/tree/master/advanced) : Annotations, Collections, Concurrency, Enums, Exceptions, Functional Interfaces, Generics, Inner Classes, NIO2, etc - [Streams](https://github.com/ravi2519/JavaCertification/tree/master/streams)