Mehman Ismayilov

Chris Stewart- wrote:No, we do not talk about game development in the book. There is a chapter on custom views and performing your own drawing, but it's very basic in comparison to what you're looking for (definitely no discussion of 3D).

If you are interested in game development, I'd suggest that you take a look at some of the game development frameworks that are out there. Unity is a popular choice.

I am sure your book will help me on Android Development After that I will dive into Unity, Thanks..

Hi Bill Philips & Chris Stewart,

I am very new to Mobile Development, want to learn Development in Android especially the Game Development.

Does your book give an intro to Game Development?
Or without diving into Android's edge cases can I learn advanced Game Development? Like the apps that require 3D visualization?

Hi Jeanne and Scott. Congratulations on your new book. I have 2 questions about your new book.
1. How will you update questions if Oracle would add some new topics to the exam? Is there online version of book that can be updated in such stuations?
2. Have you followed hardness of questions in each mock exam as actual exam?

First thanks Pierre-Yves Saumont for writing such a book because for a long time i want to jump into world of Functional Programming using Java after my OCA Java 8 exam. For the exam i just learned and wrote a simple Lambda expressions that consumes a Lambda Predicate expression. Is this knowledge enough to start your book? Thanks and good luck with your future endeavors.

I forgot to show my results in the post, so my exam result    and   eCertificate .

Henry Wong wrote:
With a really quick look, the changes looks to only be in the last paragraph, where certification links are provided.

If you really want, I guess we can change the last paragraph for you. Or ... there is nothing wrong with just posting another post -- an update post, that provides the links.

Henry

if this is not a problem, please change post to the last paragraph which you deleted, thanks in advance.

bob john wrote:
Is it true that 'this.' can be used only in constructor?     'this.' cannot be used in method?

in adition to legal usage of "this" and this(), remember "this" can only be used in instance methods and constructors. Because static methods can be called with class name and in this situation there is no object that "this" will refer, "this" can not be used in static methods. this() can only be used in constructors as the first statement.

"this" is a reference variable that refers to the current object. There are lots of usage of "this" keyword, most commons are,

The "this" keyword can be used to refer current class instance variable.

If there is instance variable and local variable with the same name, "this" keyword used to refer instance variable.

public class Point {  private int x;  private int y;    public Point(int x, int y)  {    this.x = x;    this.y = y;  } // Point } // class Point
in above code example we can not refer instance variables x and y without using "this". Local variables x and y in constructor shadows instance variables x and y in the scope of constructor. That is why when we refer x or y in constructor code will use the local variables, and to refer to the x and y field of Point, the constructor must use this.x and this.y.

The this() can be used to inside the constructor to call another overloaded constructor in the same class .

This occurs if a class has overloaded constructors, for exm: one without argument and another with two int argument.
public class Point {  private int x;  private int y;    public Point(int x, int y)  {    this.x = x;    this.y = y;  } // Point    // we want to have such a Point that is orign of coordinate system  // instead of writing this.x = 0; and this.y = 0; we call two argument constructor with parametrs 0 and 0,  // and then two argument constructor will assign 0, 0 to x and y fields.  public Point()  {    // this() must be first statemetn in the constructor    this(0, 0);  } // Point } // class Point

These are enough for OCA Java SE 8 Programmer I exam, if you want more you can find another usage of "this" by searching on the internet.

Campbell Ritchie wrote:

Mehman Ismayilov wrote:. . . Thanks for deleting, . . .

A pleasure We moderators can delete or edit posts.

how can i send you new version of my post for editing?

Campbell Ritchie wrote:We restrict editing posts because we have had many problems with it in the past. I have deleted the two duplicates.

Thanks for deleting, is this possible to edit post with your help?

i wanted to edit my topic on https://coderanch.com/t/672438/certification/Passed-OCAJP-Java-experience, but by mistake i made 2 new post under the topic, how can i delete them ? Thanks in advance

Hi.
Although this is my first post on this forum whenever i had a misunderstanding during exam preparation, i searched on this forum and found that question have already asked by someone else. I am so thankful to all of posters on this forum for the time they took to answer and help with others. And I would like to share my experience in case it would help anyone.

I am a final year Computer Engineering student and I had had two years experiences with java. Before getting started with Java i had some basics knowledge of C, C++ concepts like loops, conditions, basic operations, etc. But i had no idea what is object oriented programming. Exactly two year ago with advice my teacher from university i bought Java: Just in Time books by John Latham and this course has been running since 2004 at The University of Manchester, UK. This book is genuinely aimed at people who have never programed before and if you have no experience with programming feel free to start with this book. Nearly every section has an associated piece of coursework at the end of it and this helps you deep understanding of topics.
After reading OCA exam topic from this book i decided to prepare for the exam with fresh knowledge with my elder brother advice who is the person really helped me a lot with motivating me during preparation of exam. I started to read Java OCA 8 Programmer I Study Guide written by Jeanne Boyarsky and Scott Selikoff. I was able to finish all the chapters including mock exams in 5 month because of university lessons and laziness. Most of the time i read book on the underground The book covers 100% of exam objectives and very easy to understand with writing style and giving lots and lots of examples. At the first i was getting angry by lots of typos but after a while typos helps you to answer some questions. I don't remember my end of chapter and mock exam result exactly but all of them is over 75%.

I did end of chapter question and full mock exam from OCA Java SE 7 Programmer I Certification Guide by Mala Gupta and read al of the explanations of them, they are very helpful..

I write lots of programs to clear topics in my mind and i used Notepad++ for this purpose not IDEs.

If you want just pass exam Jeanne and Scott's book is enough but if you want high degree refer Enthuware tests for OCA-JP-I-SE8. Actually questions are harder than exam question but you will free in the exam if you did Enthuware test. Be sure you have lots of things to learn from Enthuware tests which will help you in the future not only in the exam.

My results of Enthuware Standard Tests:
Foundation Test – 89%    
Test 1        – 88%      
Test 2        – 90%      
Test 3        – 83%        
Test 4        – 96%      
Test 5        – 80%      
Test 6        – 93%

I did again and looked explanations of all the questions regardless I had answered them correctly or incorrectly. I read some sections from OCA Java SE 8 Programmer I Certification Guide by mala Gupta which topics were not clear to me, especially Java 8 Date and Time API. Before 12 hours ago exam i took Last Day Test.

Last Day Test – 92%

But i recommend to take Last Day Test and read explanations of them before one day from exam, because i did not have time to look explanations. I slept 4 hours at exam night, don't do this.

I took exam on November 4, 2016. My actual exam result was 97%. I was surprised when i saw my result, Thanks God! I made 2 mistake in exam, one of them is about  Date and Time API and one is about Lambda expression. Both of them is feature of Java 8. There are similiar question in this form to them.
Thank you for your time..