I took Java SE8 Gold.

Passed Java SE 8 Programmer II (Java SE8 Gold) the other day Did. Make a note of what you did and how you took the exam.

▼ Test results Study period: 3 months Score rate: 73% (border 65%), quite close (> o <)!

Relationship between myself and Java

Trigger

Java 8 added a lot of new features, so I took the exam to learn them. First, take the Upgrade to Java SE 8 OCP I was thinking, Since there was no reference book and the amount of information was small, I decided to receive it.

Reference books and impressions I bought

[Thorough capture Java SE 8 Gold problem collection [1Z0-809] compatible thorough capture series](https://www.amazon.co.jp/%E5%BE%B9%E5%BA%95 % E6% 94% BB% E7% 95% A5Java-SE-8-Gold% E5% 95% 8F% E9% A1% 8C% E9% 9B% 86% EF% BC% BB1Z0-809% EF% BC% BD % E5% AF% BE% E5% BF% 9C-% E5% BE% B9% E5% BA% 95% E6% 94% BB% E7% 95% A5% E3% 82% B7% E3% 83% AA% E3% 83% BC% E3% 82% BA-ebook / dp / B01LXSG1G9 / ref = pd_sim_351_1? _Encoding = UTF8 & psc = 1 & refRID = PC6MK9AHZB6JSXW5VM6F) (Hereafter referred to as black book)
I bought it because it is a standard collection of questions, but there are many less difficult questions overall. However, the final total finishing questions in the book are similar in difficulty to the actual exam, and many of the same questions were asked in the actual exam.
[OCP: Oracle Certified Professional Java SE 8 Programmer II Study Guide: Exam 1Z0-809](https://www.amazon.co.jp/dp/B0191U2H8C/ref=dp-kindle-redirect?_encoding=UTF8&btkr = 1) (Hereafter referred to as Study Guide)
I was worried about the above black book and bought it. [Purple book](https://www.amazon.co.jp/dp/B01J1LPKJY/ref=dp-kindle-redirect?_encoding=UTF8&btkr=1) with one reference book and one problem book It has become. I chose the Study Guide instead of the purple book because I wanted to improve my English. As the explanation of the book says "Complete, trusted preparation for the Java Programmer II exam", there were many questions and the content was quite substantial. The difficulty level is higher than the actual one. If you go around this book twice and the correct answer rate of the question reaches 90%, you can definitely pass. However, since the amount is large, it takes a lot of patience to make two laps (I gave up after one lap).
The book is so big that I can't read it on the train. You should buy it on your Kindle.

Test production

The number of questions was 85 and the exam time was 150 minutes, but there was no shortage of time and it took about 120 minutes to solve. The difficulty level is a little higher than the total finishing problem of Kuromoto. There are few problems such as poking the corner of the heavy box as in Java programmer SE 6 The main new functions of Java8 were stream AIP, lambda expressions, and method references, which accounted for 1/4 of the questions by themselves or in connection with others. In the Study Guide, there were many difficult problems with parallel streams, but in the actual production, there were only two simple problems. There were surprisingly few questions about Optional and DateTime API, and it was about one or two questions. JDBC had a problem related to exception handling, so it was surprisingly large with 5 to 7 questions. For New IO, you need to understand the difference in behavior between absolute and relative paths.

Impressions

In terms of points, I passed the test at the last minute. .. .. When working on the problem collection, I feel that it was necessary not only to be able to derive the correct answer, but also to understand the background for each option. However, I've organized all the major new features of Java 8, and I think it's a good understanding for business use. The exam preparation was only a collection of questions, but after the exam [Oracle official website](http://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=5001&get_params=p_exam_id:1Z0-809&p_org_id = 70 & lang = JA), I found that all the questions were given to each of the exam contents> checklist> [topic], so I should have seen them before the exam. I feel that. I also chose Kuromoto and Study Guide for studying English, but when I saw the blogs of other people, I felt that I could pass if I bought Kuromoto and Purple Book and made two laps each.

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