OCP Oracle Certified Professional Java SE 17 Developer (Exam 1Z0-829) Programmer's Guide

Cover
Half Title
Title Page
Copyright Page
Contents Overview
Contents
Figures
Tables
Examples
Foreword
Preface
	Writing This Book
	About This Book
	Using This Book
	Book Website
	Request for Feedback
	About the Authors
	Acknowledgments
1 Basics of Java Programming
	1.1 The Java Ecosystem
	1.2 Classes
	1.3 Objects
	1.4 Instance Members
	1.5 Static Members
	1.6 Inheritance
	1.7 Aggregation
	Review Questions
	1.8 Sample Java Program
	1.9 Program Output
	Review Questions
2 Basic Elements, Primitive Data Types, and Operators
	2.1 Basic Language Elements
	2.2 Primitive Data Types
	2.3 Conversions
	2.4 Type Conversion Contexts
	2.5 Precedence and Associativity Rules for Operators
	2.6 Evaluation Order of Operands
	2.7 The Simple Assignment Operator =
	2.8 Arithmetic Operators: *, /, %, +, -
	2.9 The Binary String Concatenation Operator +
	2.10 Variable Increment and Decrement Operators: ++, --
	Review Questions
	2.11 Boolean Expressions
	2.12 Relational Operators: <, <=, >, >=
	2.13 Equality
	2.14 Boolean Logical Operators: !, ^, &, |
	2.15 Conditional Operators: &&, ||
	2.16 Integer Bitwise Operators: ~, &, |, ^
	2.17 Shift Operators: <<, >>, >>>
	2.18 The Conditional Operator ?:
	2.19 Other Operators: new, [], instanceof, ->
	Review Questions
3 Declarations
	3.1 Class Declarations
	3.2 Method Declarations
	3.3 Statements
	3.4 Variable Declarations
	3.5 Instance Methods and the Object Reference this
	3.6 Method Overloading
	3.7 Constructors
	3.8 Static Member Declarations
	Review Questions
	3.9 Arrays
	3.10 Parameter Passing
	3.11 Variable Arity Methods
	3.12 The main() Method
	3.13 Local Variable Type Inference
	Review Questions
4 Control Flow
	4.1 Selection Statements
	4.2 The switch Statement
	4.3 The switch Expression
	Review Questions
	4.4 Iteration Statements
	4.5 The while Statement
	4.6 The do-while Statement
	4.7 The for(;;) Statement
	4.8 The for(:) Statement
	4.9 Transfer Statements
	4.10 Labeled Statements
	4.11 The break Statement
	4.12 The continue Statement
	4.13 The return Statement
	Review Questions
5 Object-Oriented Programming
	5.1 Implementing Inheritance
	5.2 The Object Reference super
	5.3 Chaining Constructors Using this() and super()
	Review Questions
	5.4 Abstract Classes and Methods
	5.5 Final Declarations
	Review Questions
	5.6 Interfaces
	Review Questions
	5.7 Arrays and Subtyping
	5.8 Reference Values and Conversions
	5.9 Reference Value Assignment Conversions
	5.10 Method Invocation Conversions Involving References
	5.11 Reference Casting and the instanceof Operator
	5.12 Polymorphism
	Review Questions
	5.13 Enum Types
	5.14 Record Classes
	5.15 Sealed Classes and Interfaces
	Review Questions
6 Access Control
	6.1 Design Principle: Encapsulation
	6.2 Java Source File Structure
	6.3 Packages
	6.4 Searching for Classes on the Class Path
	Review Questions
	6.5 Access Modifiers
	6.6 Scope Rules
	6.7 Implementing Immutability
	Review Questions
7 Exception Handling
	7.1 Stack-Based Execution and Exception Propagation
	7.2 Exception Types
	7.3 Exception Handling: try, catch, and finally
	7.4 The throw Statement
	7.5 The throws Clause
	Review Questions
	7.6 The Multi-catch Clause
	7.7 The try-with-resources Statement
	7.8 Advantages of Exception Handling
	Review Questions
8 Selected API Classes
	8.1 Overview of the java.lang Package
	8.2 The Object Class
	8.3 The Wrapper Classes
	Review Questions
	8.4 The String Class
	8.5 The StringBuilder Class
	Review Questions
	8.6 The Math Class
	8.7 The Random Class
	8.8 Using Big Numbers
	Review Questions
9 Nested Type Declarations
	9.1 Overview of Nested Type Declarations
	9.2 Static Member Types
	9.3 Non-Static Member Classes
	Review Questions
	9.4 Local Classes
	9.5 Static Local Types
	9.6 Anonymous Classes
	Review Questions
10 Object Lifetime
	10.1 Garbage Collection
	10.2 Reachable Objects
	10.3 Facilitating Garbage Collection
	10.4 Invoking Garbage Collection Programmatically
	Review Questions
	10.5 Initializers
	10.6 Field Initializer Expressions
	10.7 Static Initializer Blocks
	10.8 Instance Initializer Blocks
	10.9 Constructing Initial Object State
	Review Questions
11 Generics
	11.1 Introducing Generics
	11.2 Generic Types and Parameterized Types
	11.3 Collections and Generics
	11.4 Wildcards
	11.5 Using References of Wildcard Parameterized Types
	11.6 Bounded Type Parameters
	11.7 Generic Methods and Constructors
	11.8 Implementing a Simplified Generic Stack
	Review Questions
	11.9 Wildcard Capture
	11.10 Flexibility with Wildcard Parameterized Types
	11.11 Type Erasure
	11.12 Implications for Overloading and Overriding
	11.13 Limitations and Restrictions on Generic Types
	Review Questions
12 Collections, Part I: ArrayList
	12.1 Lists
	12.2 Declaring References and Constructing ArrayLists
	12.3 Modifying an ArrayList
	12.4 Querying an ArrayList
	12.5 Iterating Over an ArrayList
	12.6 Converting an ArrayList to an Array
	12.7 Creating List Views
	12.8 Arrays versus ArrayLists
	Review Questions
13 Functional-Style Programming
	13.1 Functional Interfaces
	13.2 Lambda Expressions
	13.3 Lambda Expressions and Anonymous Classes
	Review Questions
	13.4 Overview of Built-In Functional Interfaces
	13.5 Suppliers
	13.6 Predicates
	13.7 Consumers
	13.8 Functions
	13.9 Two-Arity Specialization of Function: BiFunction
	13.10 Extending Function: UnaryOperator
	13.11 Extending BiFunction: BinaryOperator
	13.12 Currying Functions
	13.13 Method and Constructor References
	13.14 Contexts for Defining Lambda Expressions
	Review Questions
14 Object Comparison
	14.1 The Objects Class
	14.2 Implementing the equals() Method
	14.3 Implementing the hashCode() Method
	14.4 Implementing the java.lang.Comparable Interface
	14.5 Implementing the java.util.Comparator Interface
	Review Questions
15 Collections: Part II
	15.1 The Java Collections Framework
	15.2 Collections
	15.3 Lists
	15.4 Sets
	15.5 Sorted Sets and Navigable Sets
	15.6 Queues
	15.7 Deques
	Review Questions
	15.8 Maps
	15.9 Map Implementations
	15.10 Sorted Maps and Navigable Maps
	Review Questions
	15.11 The Collections Class
	15.12 The Arrays Class
	Review Questions
16 Streams
	16.1 Introduction to Streams
	16.2 Running Example: The CD Record Class
	16.3 Stream Basics
	16.4 Building Streams
	16.5 Intermediate Stream Operations
	16.6 The Optional Class
	16.7 Terminal Stream Operations
	16.8 Collectors
	16.9 Parallel Streams
	Review Questions
17 Date and Time
	17.1 Date and Time API Overview
	17.2 Working with Dates and Times
	17.3 Using Temporal Units and Temporal Fields
	17.4 Working with Instants
	17.5 Working with Periods
	17.6 Working with Durations
	17.7 Working with Time Zones and Daylight Savings
	17.8 Converting Date and Time Values to Legacy Date
	Review Questions
18 Localization
	18.1 Using Locales
	18.2 Properties Files
	18.3 Bundling Resources
	Review Questions
	18.4 Core API for Formatting and Parsing of Values
	18.5 Formatting and Parsing Number, Currency, and Percentage Values
	18.6 Formatting and Parsing Date and Time
	18.7 Formatting and Parsing Messages
	Review Questions
19 Java Module System
	19.1 Making the Case for Modules
	19.2 The Modular JDK
	19.3 Module Basics
	19.4 Overview of Module Directives
	19.5 Creating a Modular Application
	19.6 Compiling and Running a Modular Application
	19.7 Creating JAR Files
	19.8 Open Modules and the opens Directive
	19.9 Services
	19.10 Creating Runtime Images
	19.11 Categories of Modules
	19.12 Migrating to Modules
	19.13 Exploring Modules
	19.14 Summary of Selected Operations with the JDK Tools
	Review Questions
20 Java I/O: Part I
	20.1 Input and Output
	20.2 Byte Streams: Input Streams and Output Streams
	20.3 Character Streams: Readers and Writers
	20.4 The Console Class
	Review Questions
	20.5 Object Serialization
	Review Questions
21 Java I/O: Part II
	21.1 Characteristics of a Hierarchical File System
	21.2 Creating Path Objects
	21.3 Working with Path Objects
	21.4 Operations on Directory Entries
	21.5 Reading and Writing Files Using Paths
	21.6 Managing File Attributes
	21.7 Creating Directory Entries
	21.8 Stream Operations on Directory Entries
	Review Questions
22 Concurrency: Part I
	22.1 Threads and Concurrency
	22.2 Runtime Organization for Thread Execution
	22.3 Creating Threads
	Review Questions
	22.4 Thread Lifecycle
	22.5 Thread Issues
	Review Questions
23 Concurrency: Part II
	23.1 Utility Classes TimeUnit and ThreadLocalRandom
	23.2 The Executor Framework
	23.3 The Fork/Join Framework
	23.4 Writing Thread-Safe Code
	23.5 Special-Purpose Synchronizers
	23.6 Synchronized Collections and Maps
	23.7 Concurrent Collections and Maps
	Review Questions
24 Database Connectivity
	24.1 Introduction to Relational Databases
	24.2 Introduction to JDBC
	24.3 Establishing a Database Connection
	24.4 Creating and Executing SQL Statements
	24.5 Processing Query Results
	24.6 Customizing Result Sets
	24.7 Discovering Database and ResultSet Metadata
	24.8 Implementing Transaction Control
	Review Questions
25 Annotations
	25.1 Basics of Annotations
	25.2 Declaring Annotation Types
	25.3 Applying Annotations
	25.4 Meta-Annotations
	25.5 Selected Standard Annotations
	25.6 Processing Annotations
	Review Questions
26 Secure Coding
	26.1 Application Security Overview
	26.2 Security Threat Categories
	26.3 Java Security Policies
	26.4 Additional Security Guidelines
	Review Questions
A Taking the Java SE 17 and Java SE 11 Developer Exams
	A.1 Preparing for the Exam
	A.2 Registering for the Online Proctored Exam
	A.3 How the Online Proctored Exam Is Conducted
	A.4 The Questions
B Exam Topics: Java SE 17 Developer
C Exam Topics: Java SE 11 Developer
D Annotated Answers to Review Questions
E Mock Exam: Java SE 17 Developer
F Annotated Answers to Mock Exam
G Java Logging API Overview
	G.1 Purpose of the Logging API
	G.2 Configuring Logging
	G.3 Writing Log Messages
	G.4 Applying Guarded Logging
	G.5 Summary
Index
	A
	B
	C
	D
	E
	F
	G
	H
	I
	J
	K
	L
	M
	N
	O
	P
	Q
	R
	S
	T
	U
	V
	W
	X
	Y
	Z