Learning Java - An Introduction to Real-World Programming with Java

Description

If you’re new to Java—or new to programming—this best-selling book will guide you through the language features and APIs of Java 11. With fun, compelling, and realistic examples, authors Marc Loy, Patrick Niemeyer, and Daniel Leuck introduce you to Java fundamentals—including its class libraries, programming techniques, and idioms—with an eye toward building real applications. You’ll learn powerful new ways to manage resources and exceptions in your applications—along with core language features included in recent Java versions. -- Develop with Java, using the compiler, interpreter, and other tools -- Explore Java’s built-in thread facilities and concurrency package -- Learn text processing and the powerful regular expressions API -- Write advanced networked or web-based applications and services Preface Who Should Read This Book New Developments New in This Edition (Java 11, 12, 13, 14) Using This Book Online Resources Conventions Used in This Book Using Code Examples O’Reilly Online Learning How to Contact Us Acknowledgments 1. A Modern Language Enter Java Java’s Origins Growing Up A Virtual Machine Java Compared with Other Languages Safety of Design Simplify, Simplify, Simplify… Type Safety and Method Binding Incremental Development Dynamic Memory Management Error Handling Threads Scalability Safety of Implementation The Verifier Class Loaders Security Managers Application and User-Level Security A Java Road Map The Past: Java 1.0–Java 11 The Present: Java 14 The Future Availability 2. A First Application Java Tools and Environment Installing the JDK Installing OpenJDK on Linux Installing OpenJDK on macOS Installing OpenJDK on Windows Configuring IntelliJ IDEA and Creating a Project Running the Project Grabbing the Learning Java Examples HelloJava Classes The main() Method Classes and Objects Variables and Class Types HelloComponent Inheritance The JComponent Class Relationships and Finger-Pointing Package and Imports The paintComponent() Method HelloJava2: The Sequel Instance Variables Constructors Events The repaint() Method Interfaces Goodbye and Hello Again 3. Tools of the Trade JDK Environment The Java VM Running Java Applications System Properties The Classpath javap Modules The Java Compiler Trying Java JAR Files File Compression The jar Utility The pack200 Utility Building Up 4. The Java Language Text Encoding Comments Javadoc Comments Variables and Constants Types Primitive Types Reference Types Inferring Types Passing References A Word About Strings Statements and Expressions Statements Expressions Arrays Array Types Array Creation and Initialization Using Arrays Anonymous Arrays Multidimensional Arrays Types and Classes and Arrays, Oh My! 5. Objects in Java Classes Declaring and Instantiating Classes Accessing Fields and Methods Static Members Methods Local Variables Shadowing Static Methods Initializing Local Variables Argument Passing and References Wrappers for Primitive Types Method Overloading Object Creation Constructors Working with Overloaded Constructors Object Destruction Garbage Collection Packages Importing Classes Custom Packages Member Visibility and Access Compiling with Packages Advanced Class Design Subclassing and Inheritance Interfaces Inner Classes Anonymous Inner Classes Organizing Content and Planning for Failure 6. Error Handling and Logging Exceptions Exceptions and Error Classes Exception Handling Bubbling Up Stack Traces Checked and Unchecked Exceptions Throwing Exceptions try Creep The finally Clause try with Resources Performance Issues Assertions Enabling and Disabling Assertions Using Assertions The Logging API Overview Logging Levels A Simple Example Logging Setup Properties The Logger Performance Real-World Exceptions 7. Collections and Generics Collections The Collection Interface Collection Types The Map Interface Type Limitations Containers: Building a Better Mousetrap Can Containers Be Fixed? Enter Generics Talking About Types “There Is No Spoon” Erasure Raw Types Parameterized Type Relationships Why Isn’t a List a List? Casts Converting Between Collections and Arrays Iterator A Closer Look: The sort() Method Application: Trees on the Field Conclusion 8. Text and Core Utilities Strings Constructing Strings Strings from Things Comparing Strings Searching String Method Summary Things from Strings Parsing Primitive Numbers Tokenizing Text Regular Expressions Regex Notation The java.util.regex API Math Utilities The java.lang.Math Class Big/Precise Numbers Dates and Times Local Dates and Times Comparing and Manipulating Dates and Times Time Zones Parsing and Formatting Dates and Times Parsing Errors Timestamps Other Useful Utilities 9. Threads Introducing Threads The Thread Class and the Runnable Interface Controlling Threads Death of a Thread Synchronization Serializing Access to Methods Accessing Class and Instance Variables from Multiple Threads Scheduling and Priority Thread State Time-Slicing Priorities Yielding Thread Performance The Cost of Synchronization Thread Resource Consumption Concurrency Utilities 10. Desktop Applications Buttons and Sliders and Text Fields, Oh My! Component Hierarchies Model View Controller Architecture Labels and Buttons Text Components Other Components Containers and Layouts Frames and Windows JPanel Layout Managers Events Mouse Events Action Events Change Events Other Events Modals and Pop Ups Message Dialogs Confirmation Dialogs Input Dialogs Threading Considerations SwingUtilities and Component Updates Timers Next Steps Menus Preferences Custom Components and Java2D JavaFX User Interface and User Experience 11. Networking and I/O Streams Basic I/O Character Streams Stream Wrappers The java.io.File Class File Streams RandomAccessFile The NIO File API FileSystem and Path NIO File Operations The NIO Package Asynchronous I/O Performance Mapped and Locked Files Channels Buffers Character Encoders and Decoders FileChannel Network Programming Sockets Clients and Servers The DateAtHost Client A Distributed Game More to Explore 12. Programming for the Web Uniform Resource Locators The URL Class Stream Data Getting the Content as an Object Managing Connections Handlers in Practice Useful Handler Frameworks Talking to Web Applications Using the GET Method Using the POST Method The HttpURLConnection SSL and Secure Web Communications Java Web Applications The Servlet Life Cycle Servlets The HelloClient Servlet The Servlet Response Servlet Parameters The ShowParameters Servlet User Session Management The ShowSession Servlet Servlet Containers Configuration with web.xml and Annotations URL Pattern Mappings Deploying HelloClient The World Wide Web Is, Well, Wide 13. Expanding Java Java Releases JCP and JSRs Lambda Expressions Retrofitting Your Code Expanding Java Beyond the Core Final Wrap-Up and Next Steps A. Code Examples and IntelliJ IDEA Grabbing the Main Code Examples Installing IntelliJ IDEA Installing on Linux Installing on a macOS Installing on Windows Importing the Examples Running the Examples Grabbing the Web Code Examples Working with Servlets Glossary Index