Learn Java 17 Programming: Learn the fundamentals of Java Programming with this updated guide with the latest features, 2nd Edition

Cover
Title Page
Copyright and Credits
Contributors
Table of Contents
Preface
Part 1: Overview of Java Programming
Chapter 1: Getting Started with Java 17
	Technical requirements
	How to install and run Java
		What is the JDK and why do we need it?
		Installing Java SE
		Commands, tools, and utilities
	How to install and run an IDE
		Selecting an IDE
		Installing and configuring IntelliJ IDEA
		Creating a project
		Importing a project
		Executing examples from the command line
	Java primitive types and operators
		Boolean types
		Numeric types
		Default values of primitive types
		Literals of primitive types
		New compact number format
		Operators
	String types and literals
		String literals
		String immutability
	IDs and variables
		ID
		Variable declaration (definition) and initialization
	Java statements
		Expression statements
		Control flow statements
	Summary
	Quiz
Chapter 2: Java Object-Oriented Programming (OOP)
	Technical requirements
	OOP concepts
		Object/class
		Inheritance
		Abstraction/interface
		Encapsulation
		Polymorphism
	Class
		Method
		Constructor
		The new operator
		Class java.lang.Object
		Instance and static properties and methods
	Interface
		Default methods
		Private methods
		Static fields and methods
		Interface versus abstract class
	Overloading, overriding, and hiding
		Overloading
		Overriding
		Hiding
	The final variable, method, and classes
		The final variable
		Final method
		Final class
	The record class
	Sealed classes and interfaces
	Polymorphism in action
		The object factory
		The instanceof operator
	Summary
	Quiz
Chapter 3: Java Fundamentals
	Technical requirements
	Packages, importing, and access
		Packages
		Importing
		Access modifiers
	Java reference types
		Class and interface
		Array
		Enum
		Default values and literals
		A reference type as a method parameter
		equals() method
	Reserved and restricted keywords
		Reserved keywords
		Reserved identifiers
		Reserved words for literal values
		Restricted keywords
	Usage of the this and super keywords
		Usage of the this keyword
		Usage of the super keyword
	Converting between primitive types
		Widening conversion
		Narrowing conversion
		Methods of conversion
	Converting between primitive and reference types
		Boxing
		Unboxing
	Summary
	Quiz
Part 2: Building Blocks of Java
Chapter 4: Exception Handling
	Technical requirements
	The Java exceptions framework
	Checked and unchecked exceptions
	The try, catch, and finally blocks
	The throws statement
	The throw statement
	The assert statement
	Best practices of exception handling
	Summary
	Quiz
Chapter 5: Strings, Input/Output,and Files
	Technical requirements
	String processing
		Methods of the String class
		String utilities
	I/O streams
		Stream data
		The InputStream class and its subclasses
		The OutputStream class and its subclasses
		The Reader and Writer classes and their subclasses
		Other classes of the java.io package
		The java.util.Scanner class
	File management
		Creating and deleting files and directories
		Listing files and directories
	Apache Commons’ FileUtils and IOUtils utilities
		The FileUtils class
		The IOUtils class
	Summary
	Quiz
Chapter 6: Data Structures, Generics, and Popular Utilities
	Technical requirements
	List, Set, and Map interfaces
		Generics
		How to initialize List and Set
		java.lang.Iterable interface
		Collection interface
		List interface
		Set interface
		Map interface
		Unmodifiable collections
	Collections utilities
		java.util.Collections class
		CollectionUtils class
	Arrays utilities
		java.util.Arrays class
		ArrayUtils class
	Objects utilities
		java.util.Objects class
		ObjectUtils class
	The java.time package
		LocalDate class
		LocalTime class
		LocalDateTime class
		Period and Duration classes
		Period of day
	Summary
	Quiz
Chapter 7: Java Standard and External Libraries
	Technical requirements
	Java Class Library (JCL)
		java.lang
		java.util
		java.time
		java.io and java.nio
		java.sql and javax.sql
		java.net
		java.lang.math and java.math
		java.awt, javax.swing, and javafx
	External libraries
		org.junit
		org.mockito
		org.apache.log4j and org.slf4j
		org.apache.commons
	Summary
	Quiz
Chapter 8: Multithreading and Concurrent Processing
	Technical requirements
	Thread versus process
	User thread versus daemon
	Extending the Thread class
	Implementing the Runnable interface
	Extending Thread versus implementing Runnable
	Using a pool of threads
	Getting results from a thread
	Parallel versus concurrent processing
	Concurrent modification of the same resource
		Atomic variable
		Synchronized method
		Synchronized block
		Concurrent collections 
		Addressing memory consistency errors
	Summary
	Quiz
Chapter 9: JVM Structure and Garbage Collection
	Technical requirements
	Java application execution
		Using an IDE
		Using the command line with classes
		Using the command line with JAR files
		Using the command line with an executable JAR file
	Java processes 
		Classloading
		Class linking
		Class initialization
		Class instantiation
		Method execution
		Garbage collection
		Application termination
	JVM’s structure
		Runtime data areas
		Classloaders
		Execution engine
	Garbage collection
		Responsiveness, throughput, and stop-the-world
		Object age and generation
		When stop-the-world is unavoidable
	Summary
	Quiz
Chapter 10: Managing Data in a Database
	Technical requirements
	Creating a database
	Creating a database structure
	Connecting to a database
	Releasing the connection
	CRUD data
		The INSERT statement
		The SELECT statement
		The UPDATE statement
		The DELETE statement
		Using statements
		Using PreparedStatement
		Using CallableStatement
		Using a shared library JAR file to access a database
	Summary
	Quiz
Chapter 11: Network Programming
	Technical requirements
	Network protocols
	UDP-based communication
	TCP-based communication
		The java.net.ServerSocket class
		The java.net.Socket class
		Running the examples
	UDP versus TCP protocols
	URL-based communication
		The URL syntax
		The java.net.URL class
	Using the HTTP 2 Client API
		Blocking HTTP requests
		Non-blocking (asynchronous) HTTP requests
		Server push functionality
		WebSocket support
	Summary
	Quiz
Chapter 12: Java GUI Programming
	Technical requirements
	Java GUI technologies
	JavaFX fundamentals
	HelloWorld with JavaFX
	Control elements
	Charts
	Applying CSS
	Using FXML
	Embedding HTML
	Playing media
	Adding effects
	Summary
	Quiz
Part 3: Advanced Java
Chapter 13: Functional Programming
	Technical requirements
	What is functional programming?
		What is a functional interface?
		What is a Lambda expression?
	Standard functional interfaces
		Consumer
		Predicate
		Supplier
		Function
		Other standard functional interfaces
	Lambda expression limitations
	Method references
	Summary
	Quiz
Chapter 14: Java Standard Streams
	Technical requirements
	Streams as a source of data and operations
	Stream initialization
		Stream interface
		The Stream.Builder interface
		Other classes and interfaces
	Operations (methods)
		Intermediate operations
		Terminal operations
	Numeric stream interfaces
		Creating a stream
		Intermediate operations
		Terminal operations
	Parallel streams
		Stateless and stateful operations
		Sequential or parallel processing?
	Summary
	Quiz
Chapter 15: Reactive Programming
	Technical requirements
	Asynchronous processing
		Sequential and parallel streams
		Using the CompletableFuture object
	Non-blocking APIs
		The java.io package versus the java.nio package
		The event/run loop
	Reactive
		Responsive
		Resilient
		Elastic
		Message-driven
	Reactive streams
	RxJava
		Observable types
		Disposable
		Creating an observable
		Operators
		Multithreading (scheduler)
	Summary
	Quiz
Chapter 16: Java Microbenchmark Harness
	Technical requirements
	What is JMH?
	Creating a JMH benchmark
	Running the benchmark
		Using an IDE plugin
	JMH benchmark parameters
		Mode
		Output time unit
		Iterations
		Forking
	JMH usage examples
		Using the @State annotation
		Using the Blackhole object
		Using the @CompilerControl annotation
		Using the @Param annotation
	A word of caution
	Summary
	Quiz
Chapter 17: Best Practices for Writing High-Quality Code
	Technical requirements
	Java idioms, their implementation, and their usage
		The equals() and hashCode() methods
		The compareTo() method
		The clone() method
		The StringBuffer and StringBuilder classes
		The try, catch, and finally clauses
	Best design practices
		Identifying loosely coupled functional areas
		Breaking the functional area into traditional tiers
		Coding to an interface
		Using factories
		Preferring composition over inheritance
		Using libraries
	Code is written for people
	Use well-established frameworks and libraries
	Testing is the shortest path to quality code
	Summary
	Quiz
Assessments
	Chapter 1 – Getting Started with Java 17
	Chapter 2 – Java Object-Oriented Programming (OOP)
	Chapter 3 – Java Fundamentals
	Chapter 4 – Exception Handling
	Chapter 5 – Strings, Input/Output, and Files
	Chapter 6 – Data Structures, Generics, and Popular Utilities
	Chapter 7 – Java Standard and External Libraries
	Chapter 8 – Multithreading and Concurrent Processing
	Chapter 9 – JVM Structure and Garbage Collection
	Chapter 10 – Managing Data in a Database
	Chapter 11 – Network Programming
	Chapter 12 – Java GUI Programming
	Chapter 13 – Functional Programming
	Chapter 14 – Java Standard Streams
	Chapter 15 – Reactive Programming
	Chapter 16 – Java Microbenchmark Harness
	Chapter 17 – Best Practices for Writing High-Quality Code
Index
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