Contents
Acknowledgments .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
1 Self-Assessment Test 1 ..
...
Contents
Acknowledgments .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
1 Self-Assessment Test 1 .. . . . . . . . . . . . . . . . . . . . . . . . 1
How Close Are You to Ready? .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Q&A Assessment Test 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Quick Answer Key .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Assessment Test 1: Answers .. . . . . . . . . . . . . . . . . . . . . . . . 12
Analyzing Your Results .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Creating Your Exam Log .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
More Study Tips .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Common Questions and Complaints, and Some Answers .. . . . . . . . . 26
Why Is the Code Formatting so Terrible? .. . . . . . . . . . . . . . . 26
Why Is There so Much Memorization? . . . . . . . . . . . . . . . . . 26
Preparing for Self-Assessment Test 2 . . . . . . . . . . . . . . . . . . . . . . . . . 28
2 Self-Assessment Test 2 .. . . . . . . . . . . . . . . . . . . . . . . . 29
How Close Are You to Ready? .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Q&A Assessment Test 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Quick Answer Key .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Assessment Test 2: Answers .. . . . . . . . . . . . . . . . . . . . . . . . 41
Analyzing Your Results .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Preparing for Practice Exam 1 .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
3 Practice Exam 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
A Few Thoughts .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Question Management .. . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Time Management .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Q&A Practice Exam 1 .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Quick Answer Key .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Practice Exam 1: Answers .. . . . . . . . . . . . . . . . . . . . . . . . . . 91
Analyzing Your Results .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
xi
Coding Exercises .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Passing the Exam in Three Steps .. . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Code, Code, Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Tips for Creating Prototype “Study” Code . . . . . . . . . . . . . . . . . . . . . 142
Prototype / Research / Study Projects .. . . . . . . . . . . . . . . . . . . . . . . . 146
Section 1: Declarations, Initialization, Scoping . . . . . . . . . . . 146
Section 2: Flow Control .. . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Section 3: APIs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Section 4: Concurrency . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Section 5: OO Concepts .. . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Section 6: Collections/Generics . . . . . . . . . . . . . . . . . . . . . . 150
Section 7: Fundamentals .. . . . . . . . . . . . . . . . . . . . . . . . . . . 151
5 Practice Exam 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
How Close Are You to Ready? .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Q&A Practice Exam 2 .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Quick Answer Key .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Practice Exam 2: Answers .. . . . . . . . . . . . . . . . . . . . . . . . . . 188
Analyzing Your Results .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
More Study Tips .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
6 Practice Exam 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
How Close Are You to Ready? .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Q&A Practice Exam 3 .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Quick Answer Key .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Practice Exam 3: Answers .. . . . . . . . . . . . . . . . . . . . . . . . . . 273
Analyzing Your Results .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Revenge of the Study Tips .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
7 Practice Exam 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
How Close Are You to Ready? .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
Q&A Practice Exam 4 .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325
Quick Answer Key .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362
Practice Exam 4: Answers .. . . . . . . . . . . . . . . . . . . . . . . . . . 363
Analyzing Your Results .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 416
More Study Tips, One Last Time .. . . . . . . . . . . . . . . . . . . . . . . . . . . 416
A Objectives Index .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 419
Introduction
Just How Hard Is the OCP Java SE Programmer Exam?
Since you’ve decided to pick this book up, we’re guessing that you’re considering
taking the OCP Java SE 6 Programmer exam.
The OCP Java SE Programmer exam is considered one of the hardest in the
IT industry, and we can tell you from experience that a large percentage of exam
candidates go in to the test unprepared. As programmers, we tend to learn only what
we need to complete our current project, given the insane deadlines we’re usually
under. But this exam attempts to prove your complete understanding of the Java
language, not just the parts of it you’ve become familiar with in your work.
Experience alone will rarely get you through this exam with a passing mark,
because even the things you think you know might work just a little different than
you imagined. It isn’t enough to be able to get your code to work correctly; you must
understand the core fundamentals in a deep way, and with enough breadth to cover
virtually anything that could crop up in the course of using the language.
What this Book Is (and Is Not)
As we’ll discuss again in Chapter 4, most successful candidates do three things:
n Study with a good study guide
n Take a lot of mock exams
n Write a lot of code
This book focuses on the last two items of the preceding list. It is NOT a study
guide. If you haven’t worked with a good study guide, and you find that you’re scoring
well on the practice exams in this book, count yourself unusual. Our experience,
working with thousands of candidates, is that taking mock exams alone isn’t enough
to pass this exam. (Our main goal with this book is to supplement our study guide.)
The basic study plan we recommend is that you do a lot of reading and coding
before taking the four full mock exams in this book
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