Jeanne BoyarskySybex OCA / OCP Java SE 8 Programmer Certification Kit: Exam 1Z0–808 and Exam 1Z0–809

Great for someone who has an introductory knowledge in Java. The book is well descriptive with great examples and error cases. It also provides tests at the end of each chapter to ensure the content has been clearly understood and prepare you for the exam.

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Testi necessari per entrare nell'ottica dell'esame di certificazione.Ci sono sicuramente molti suggerimenti ed esempi utili.

This is one of the best Java books on the market. Boyarsky and Selikoff are really amazing - they explained niche and obscure concepts that always alluded me about Java, even after having majored and completed my BS of Computer Engineering at University and working as a Software Engineer in a big city in for ~1 year (yes, I'm still relatively new).I did take a few C++/Java classes and data structures and algorithms while undergraduate, so I wasn't at point 0 in terms of experience. If you are COMPLETELY brand new to coding and don't understand classes or constructors or the absolute BASICS, you may want to start with HEAD FIRST JAVA as they state in the book.Otherwise, they do an amazing job explaining the very basics of Java, data types, garbage collection, numeric promotion, core Java APIs, introduction to lambda expressions and functional interfaces, OOP design using abstract classes, interfaces, inheritance and overloading/overriding ,and exception handling.I went a while being pretty mediocre at Java, even while working as a SWE, but I noticed it was holding me back. These books were recommended to me by another co-worker and it's really increased my Java game immensely; I feel like I can finally say I understand the language. Also, for those of you trying to learn Java, JavaScript, Python, C++ all at once - as many people will tell you, don't do it! Just master 1 language of your choice (doesn't have to be Java). Most languages have so much overlap, and a deep understanding in one language will make learning the others MUCH easier, rather than having a mediocre understanding of Java then trying to learn Python, you will just end up a "Jack of all trades, master of none"I am going through the OCP now.

Compre esta guía para prepararme para tomar las certificaciones de Oracle OCA y OCP Java 8, y considero fueron fundamentales para obtenerlas, cada uno de los tópicos está bien cubierto a nivel conceptual y practico, además de explicar esos pequeños detalles que oracle usa para preguntas capciosas. También tienes acceso a exámenes en línea de cada capítulo y varios más de prueba. Si deseas presentar tu certificación, eres autodidacta y tienes experiencia basica previa en el lenguaje esta es una buena opción.