100_java_mistakes_and_how_to_avoid_them_by_tagir_valeev

100 Java Mistakes and How to Avoid Them by Tagir Valeev

Overview

“100 Java Mistakes and How to Avoid Them” is a comprehensive guide designed to help Java developers navigate through common pitfalls in Java programming. The book aims to improve code quality, performance, and maintainability by highlighting frequent errors and providing practical solutions.

Introduction to Java Mistakes

The book begins with an introduction to the importance of understanding and avoiding common mistakes in Java programming. It emphasizes how identifying and correcting these errors early can save developers time and effort, leading to more robust and efficient applications.

Not Using Proper Data Structures

One section delves into the misuse of data structures, highlighting scenarios where choosing the wrong type can lead to inefficient performance. The book discusses the importance of selecting the appropriate data structure for specific tasks.

Ignoring Exceptions

A significant portion is dedicated to exception handling, focusing on the consequences of ignoring or improperly handling exceptions. It advises on best practices for using try-catch blocks and creating custom exceptions to improve error management.

Overusing Objects

The pitfalls of unnecessary object creation are explored, illustrating how it can lead to memory leaks and performance issues. The book suggests ways to minimize object creation and promote the use of primitive types and string pooling.

Misusing Generics

“Misusing Generics” addresses common mistakes developers make when working with generics, such as not specifying type parameters or misusing wildcard types. It provides guidelines for using generics to enhance code readability and safety.

Concurrent Programming Errors

The complexities of concurrent programming in Java are discussed, with a focus on common synchronization issues and thread interference. Solutions include the proper use of synchronized blocks and understanding the Java Memory Model.

Inefficient Use of Streams and Lambdas

This section covers the inefficient use of streams and lambda expressions, including common pitfalls like overusing streams for simple tasks or misapplying lambdas. The book offers tips for leveraging these features effectively.

Not Utilizing Java 8 Features

The book points out the underutilization of Java 8 features, such as streams, lambdas, and the Optional class. It demonstrates how these features can make code more concise and readable.

Ignoring Java Best Practices

A chapter is dedicated to the importance of adhering to Java best practices, including naming conventions, code organization, and documentation. The book emphasizes the role of these practices in maintaining code quality.

Misunderstanding Scope and Visibility

Common mistakes related to variable scope and visibility are addressed, explaining how incorrect use can lead to bugs and security issues. The book clarifies the use of access modifiers and variable scope to prevent such errors.

Incorrect Use of Static

The incorrect use of static methods and variables is discussed, highlighting how abuse of static can lead to problems with object-oriented design and testing. The book recommends best practices for using static members in Java.

Poor Resource Management

This section focuses on the management of system resources, such as files and network connections. The book describes common mistakes in resource management and advises on using try-with-resources and proper cleanup techniques.

Failing to Optimize Loops

The book examines loop optimization, pointing out inefficiencies such as redundant calculations inside loops or the misuse of loop controls. It offers strategies for optimizing loop performance and readability.

Inadequate Testing

The significance of thorough testing is underscored, with a focus on common oversights in unit and integration testing. The book advocates for a test-driven development approach and the use of testing frameworks like JUnit.

Hardcoding Values

The pitfalls of hardcoding values, such as configuration settings or file paths, are discussed. The book recommends

using external configuration files or constants to make applications more flexible and maintainable.

Not Considering Security Implications

A chapter is devoted to security, addressing common vulnerabilities related to Java applications, such as SQL injection and improper data validation. The book provides guidance on incorporating security best practices into the development process.

Neglecting Performance Considerations

The book highlights the importance of considering performance in Java development, discussing common mistakes like neglecting the cost of object creation or ignoring collection performance. It offers tips for writing efficient Java code.

Conclusion and Further Resources

“100 Java Mistakes and How to Avoid Them” concludes with a summary of the key points covered in the book and provides further resources for deepening the reader's understanding of Java best practices and mistake avoidance.

Final Thoughts

Through its comprehensive examination of common Java mistakes and practical advice for avoiding them, “100 Java Mistakes and How to Avoid Them” serves as an essential resource for Java developers seeking to improve their skills and code quality.


Product Details

Book Summary

“Dodge the common mistakes that even senior developers make, take full advantage of static analysis tools, and deliver robust and error-free Java code.”

Inside 100 Java Mistakes and How To Avoid Them you will learn how to:

“Whenever you make a mistake writing Java, it’s almost guaranteed that someone else has made it before! In 100 Java Mistakes and How To Avoid Them you’ll learn about the common and the not-so-common antipatterns, errors, and tricky bits that trip up almost every Java developer. Discover the bugs that are hiding in your Java code, and explore useful and effective ways to dodge them—from unit tests and defensive coding to static analysis tools like IntelliJ IDEA, SonarLint, and Error Prone.”

about the technology

Minor bugs you might not notice when writing code can quickly spin out of control in production, costing you time and money to fix. The solution is clear: spot the mistakes before you make them! This one-of-a-kind guide makes it just that easy. It shines a spotlight on the errors most often made by Java developers, so you can consistently deliver exceptional Java code.

about the book

100 Java Mistakes and How To Avoid Them shows you how to improve your Java code by identifying and dodging Java common programming problems. Inside, you’ll find one hundred Java programming errors, from missteps that trip up beginners to mistakes even Java experts don’t know they’re making. Each mistake is accompanied by concrete Java troubleshooting advice, as well as ways of using modern static analysis tools like JetBrains IntelliJ IDEA and SonarLint to identify and fix the problem. You’ll quickly see why static analysis can be so helpful for writing your code, and even learn how to write your own useful plugins!

about the reader

For Java developers of all skill levels.

about the author

Tagir Valeev is a technical lead in JetBrains GmbH, where he works in the Java team and gives Java language support in IntelliJ IDEA. Tagir designed and developed many code inspections for IntelliJ IDEA built-in static analyzer. He is a Java Champion, and holds a PhD in computer science.

Fair Use Sources

Java Vocabulary List (Sorted by Popularity)

Java Programming Language, Java Virtual Machine (JVM), Java Development Kit (JDK), Java Runtime Environment (JRE), Java Class, Java Interface, Java Method, Java Object, Java Package, Java String, Java Integer, Java Array, Java List, Java Map, Java Set, Java Exception, Java Thread, Java Synchronization, Java Generic, Java Annotation, Java Stream, Java Lambda Expression, Java Inheritance, Java Polymorphism, Java Encapsulation, Java Abstraction, Java Access Modifier, Java Constructor, Java Overloading, Java Overriding, Java Collection Framework, Java ArrayList, Java HashMap, Java HashSet, Java LinkedList, Java TreeMap, Java TreeSet, Java Iterator, Java Enumeration, Java File, Java InputStream, Java OutputStream, Java Reader, Java Writer, Java BufferedReader, Java BufferedWriter, Java PrintWriter, Java PrintStream, Java Scanner, Java StringBuilder, Java StringBuffer, Java Character, Java Boolean, Java Double, Java Float, Java Byte, Java Short, Java Long, Java BigInteger, Java BigDecimal, Java ClassLoader, Java Reflection, Java Proxy, Java Dynamic Proxy, Java Inner Class, Java Static Nested Class, Java Anonymous Class, Java Enum, Java Autoboxing, Java Auto-Unboxing, Java Garbage Collection, Java Memory Model, Java Just-In-Time Compilation, Java Classpath, Java Module, Java Module Path, Java Record, Java Sealed Class, Java Switch Expression, Java Pattern Matching for instanceof, Java Text Block, Java Var Keyword, Java Interface Default Method, Java Interface Static Method, Java Functional Interface, Java SAM (Single Abstract Method) Interface, Java Optional, Java Stream API, Java Collectors, Java Parallel Streams, Java Concurrency Package, Java Executor, Java ExecutorService, Java Future, Java CompletableFuture, Java ForkJoinPool, Java ReentrantLock, Java Semaphore, Java CountDownLatch, Java CyclicBarrier, Java Phaser, Java BlockingQueue, Java ConcurrentHashMap, Java AtomicInteger, Java AtomicLong, Java AtomicReference, Java AtomicBoolean, Java Lock Interface, Java ReadWriteLock, Java Condition, Java ThreadLocal, Java Synchronized Keyword, Java Volatile Keyword, Java Notify, Java Wait, Java Monitor, Java ReentrantReadWriteLock, Java ConcurrentLinkedQueue, Java PriorityQueue, Java Deque, Java ArrayDeque, Java SortedMap, Java SortedSet, Java NavigableMap, Java NavigableSet, Java EnumSet, Java EnumMap, Java WeakHashMap, Java LinkedHashMap, Java LinkedHashSet, Java IdentityHashMap, Java TreeMap Comparator, Java HashCode, Java Equals Method, Java CompareTo Method, Java Cloneable Interface, Java Serializable Interface, Java Externalizable Interface, Java Serialization Mechanism, Java ObjectOutputStream, Java ObjectInputStream, Java Transient Keyword, Java Persistence, Java JDBC (Java Database Connectivity), Java SQL Package, Java PreparedStatement, Java ResultSet, Java DriverManager, Java Connection, Java Statement, Java CallableStatement, Java RowSet, Java Bean, Java PropertyDescriptor, Java Introspector, Java BeanInfo, Java Enterprise Edition, Java Servlet, Java ServletContext, Java HttpServlet, Java HttpServletRequest, Java HttpServletResponse, Java Session, Java Filter, Java Listener, Java JSP (Java Server Pages), Java Expression Language, Java JSTL (JavaServer Pages Standard Tag Library), Java JDBC RowSet, Java DataSource, Java JNDI (Java Naming and Directory Interface), Java RMI (Remote Method Invocation), Java RMI Registry, Java RMI Stub, Java RMI Skeleton, Java RMI Remote Interface, Java CORBA Support, Java IDL, Java NamingException, Java InitialContext, Java Context Lookup, Java Message Service (JMS), Java Mail API, Java Bean Validation, Java Security Manager, Java Policy, Java Permission, Java AccessController, Java PrivilegedAction, Java KeyStore, Java TrustStore, Java SSLContext, Java Cipher, Java MessageDigest, Java KeyFactory, Java SecretKey, Java PublicKey, Java PrivateKey, Java Certificate, Java SecureRandom, Java SecureClassLoader, Java GSS-API (Generic Security Services), Java SASL (Simple Authentication and Security Layer), Java JAAS (Java Authentication and Authorization Service), Java Kerberos Integration, Java PKI (Public Key Infrastructure), Java JCE (Java Cryptography Extension), Java JCA (Java Cryptography Architecture), Java AWT (Abstract Window Toolkit), Java Swing, Java JFrame, Java JPanel, Java JLabel, Java JButton, Java JTextField, Java JTextArea, Java JScrollPane, Java JList, Java JComboBox, Java JTable, Java JTree, Java JDialog, Java JOptionPane, Java JProgressBar, Java JSlider, Java JSpinner, Java BoxLayout, Java BorderLayout, Java FlowLayout, Java GridLayout, Java GridBagLayout, Java CardLayout, Java LayoutManager, Java Drag and Drop, Java Clipboard, Java ImageIO, Java BufferedImage, Java Graphics2D, Java Font, Java Color, Java GradientPaint, Java TexturePaint, Java Stroke, Java Shape, Java AffineTransform, Java Path2D, Java BasicStroke, Java RenderingHints, Java GraphicsEnvironment, Java Robot, Java PrintService, Java PrinterJob, Java Paint Event, Java SwingUtilities, Java Pluggable LookAndFeel, Java Metal LookAndFeel, Java Nimbus LookAndFeel, Java Accessibility API, Java Sound API, Java MIDI, Java Clip, Java AudioInputStream, Java Sequencer, Java Synthesizer, Java Line, Java Port, Java Mixer, Java DataLine, Java Applet, Java Web Start, Java FX (JavaFX), Java SceneGraph, Java Node (JavaFX), Java Stage (JavaFX), Java Scene (JavaFX), Java Pane (JavaFX), Java GridPane, Java BorderPane, Java HBox, Java VBox, Java StackPane, Java AnchorPane, Java FlowPane, Java TilePane, Java Label (JavaFX), Java Button (JavaFX), Java TextField (JavaFX), Java TextArea (JavaFX), Java ChoiceBox, Java ComboBox (JavaFX), Java ListView, Java TableView, Java TreeView, Java WebView, Java Observable, Java Property (JavaFX), Java Binding (JavaFX), Java CSS (JavaFX), Java FXML, Java MediaPlayer, Java SwingNode, Java HTMLEditor (JavaFX), Java Concurrency in JavaFX, Java ScheduledExecutorService, Java Timer, Java TimerTask, Java ThreadPoolExecutor, Java WorkStealingPool, Java Callable, Java Runnable, Java FutureTask, Java LockSupport, Java Phaser Parties, Java Thread Dump, Java Heap Dump, Java Flight Recorder, Java Mission Control, Java JVMTI (JVM Tool Interface), Java JMX (Java Management Extensions), Java MBean, Java MBeanServer, Java MXBean, Java GarbageCollectorMXBean, Java MemoryMXBean, Java OperatingSystemMXBean, Java ThreadMXBean, Java CompilationMXBean, Java ClassLoadingMXBean, Java PlatformManagedObject, Java Instrumentation API, Java Attach API, Java JVMDebugger, Java JDWP (Java Debug Wire Protocol), Java JDI (Java Debug Interface), Java JShell, Java Scripting API, Java Nashorn (JavaScript Engine), Java XML Processing, Java DOM Parser, Java SAX Parser, Java StAX Parser, Java JAXB (Java Architecture for XML Binding), Java JAXP (Java API for XML Processing), Java SOAP, Java JAX-WS (Java API for XML Web Services), Java RESTful Web Services (JAX-RS), Java JSON Processing (JSON-P), Java JSON Binding (JSON-B), Java CDI (Contexts and Dependency Injection), Java EJB (Enterprise JavaBeans), Java JMS (Java Message Service), Java JTA (Java Transaction API), Java Bean Validation (JSR 380), Java Dependency Injection Frameworks, Java Spring Framework, Java Spring Boot, Java Hibernate (Java Persistence Framework), Java JPA (Java Persistence API), Java JAX-RPC (Java API for XML-based RPC), Java AppServer, Java GlassFish, Java WildFly, Java Liberty Profile, Java Tomcat, Java Jetty, Java Undertow, Java OSGi (Open Service Gateway Initiative), Java Pax Exam, Java RAP (Remote Application Platform), Java RCP (Rich Client Platform), Java Equinox, Java Tycho Build, Java Lombok, Java Guava, Java SLF4J (Simple Logging Facade for Java), Java Logback, Java JUL (Java Util Logging), Java Log4j, Java Commons Collections, Java Commons IO, Java Commons Lang, Java HTTPClient, Java URLConnection, Java URI Class, Java URL Class, Java Cookie Handler, Java HTTPServer, Java WebSocket API, Java AppletViewer, Java RMIClassLoader, Java JVMPauseDetector, Java Memory Settings, Java System Properties, Java Environment Variables (As Accessed by Java), Java ServiceLoader, Java SPI (Service Provider Interface), Java Instrumentation Rewriting, Java Agent Attaching, Java Runtime Exec, Java ProcessHandle, Java ProcessBuilder, Java ScriptingEngineManager, Java ScriptEngine, Java ScriptContext, Java CompiledScript, Java FX Application Thread, Java FXProperty, Java FXObservableValue, Java FXKeyFrame, Java FXTimeline, Java FXTransition, Java FXImageView, Java FXCanvas, Java FX3D Features, Java AOT Compilation (jaotc), Java GraalVM Integration, Java JNI (Java Native Interface), Java NIO (Non-Blocking I/O), Java Path, Java Files Class, Java FileSystem, Java FileChannel, Java AsynchronousFileChannel, Java Socket, Java ServerSocket, Java DatagramSocket, Java MulticastSocket, Java SocketChannel, Java ServerSocketChannel, Java DatagramChannel, Java Pipe, Java FileLock, Java MappedByteBuffer, Java CharsetDecoder, Java CharsetEncoder, Java SecretKeySpec, Java KeySpec, Java KeyPair, Java KeyAgreement, Java KeyGenerator, Java Mac (Message Authentication Code), Java PolicySpi, Java SecureRandomSpi, Java CertPath, Java CertPathBuilder, Java CertPathValidator, Java TrustManager, Java KeyManager, Java SSLSession, Java SSLSocket, Java SSLServerSocket, Java SSLEngine, Java SSLParameters, Java HttpsURLConnection, Java DomainCombiner, Java Principal, Java Subject, Java LoginContext, Java CallbackHandler, Java TextField (Swing), Java TextPane, Java StyledDocument, Java AttributeSet, Java StyleConstants, Java AbstractDocument, Java DocumentFilter, Java Caret, Java Highlighter, Java UndoManager, Java DefaultStyledDocument, Java ViewFactory, Java EditorKit, Java KeyStroke, Java ActionMap, Java InputMap, Java RootPane, Java GlassPane, Java LayeredPane, Java MenuBar, Java MenuItem, Java JMenu, Java JMenuItem, Java JCheckBoxMenuItem, Java JRadioButtonMenuItem, Java PopupMenu, Java Popup, Java TooltipManager, Java DesktopManager, Java InternalFrame, Java InternalFrameUI, Java InternalFrameAdapter, Java DockingFrames, Java SystemTray, Java TrayIcon, Java Robot Class, Java PrintServiceLookup, Java FlavorMap, Java Transferable, Java DataFlavor, Java DragGestureRecognizer, Java DropMode, Java DropTargetAutoScroll, Java DropTargetContext, Java DropTargetListener, Java DropTargetDragEvent, Java DropTargetDropEvent, Java BasicLookAndFeel Class, Java SynthLookAndFeel, Java UIDefaults, Java UIManager, Java ClientPropertyKey, Java ImageIOSpi, Java ImageWriter, Java ImageReader, Java ImageInputStream, Java ImageOutputStream, Java IIOMetadata, Java BufferedImageOp, Java ColorModel, Java WritableRaster, Java IndexColorModel, Java Raster, Java RenderedImage, Java WritableRenderedImage, Java ImageTranscoder, Java ImageWriterSpi, Java ImageReaderSpi, Java Soundbank, Java MidiChannel, Java MidiDevice, Java MidiEvent, Java Sequence, Java MidiFileFormat, Java SoundFont, Java AudioSystem, Java AudioFormat, Java DataLine.Info, Java LineEvent, Java LineListener, Java Clip Class, Java SourceDataLine, Java TargetDataLine, Java Port.Info, Java Mixer.Info, Java Gervill (SoftSynthesizer), Java AccessBridge, Java AWTEvent, Java KeyEvent, Java MouseEvent, Java FocusEvent, Java WindowEvent, Java ComponentEvent, Java AdjustmentEvent, Java ContainerEvent, Java InputMethodEvent, Java HierarchyEvent, Java InvocationEvent, Java PaintEvent, Java DropTargetEvent, Java Peer Interface, Java AWTEventMulticaster, Java Toolkit, Java Desktop, Java GraphicsConfiguration, Java GraphicsDevice, Java AWTKeyStroke, Java TextHitInfo, Java TextLayout, Java TextAttribute, Java FontRenderContext, Java AttributedString, Java LineBreakMeasurer, Java Bidi, Java BreakIterator, Java Collator, Java Locale, Java ResourceBundle, Java Formatter, Java Format Conversion, Java SimpleDateFormat, Java DecimalFormat, Java MessageFormat, Java ChoiceFormat, Java ScannerDelimiter, Java System.Logger, Java Logger, Java Level, Java LogRecord, Java ConsoleHandler, Java FileHandler, Java MemoryHandler, Java SocketHandler, Java SimpleFormatter, Java XMLFormatter, Java Preferences, Java PreferenceChangeEvent, Java NodeChangeEvent, Java PrinterException, Java PrinterAbortException, Java PrintException, Java PrintQuality, Java PrintServiceAttribute, Java ServiceUI, Java Pageable, Java Printable, Java Book, Java TablePrintable, Java StreamPrintService, Java StreamPrintServiceFactory, Java Filer (Annotation Processing), Java Messager, Java ProcessingEnvironment, Java Element, Java ElementKind, Java ElementVisitor, Java PackageElement, Java TypeElement, Java VariableElement, Java ExecutableElement, Java AnnotationMirror, Java AnnotationValue, Java AnnotationProcessor, Java RoundEnvironment, Java TypeMirror, Java DeclaredType, Java ArrayType, Java TypeVariable, Java WildcardType, Java NoType, Java ErrorType, Java UnionType, Java IntersectionType, Java JavacTool, Java StandardJavaFileManager, Java Diagnostic, Java DiagnosticCollector, Java ForwardingJavaFileManager, Java ForwardingJavaFileObject, Java ForwardingJavaFileObject, Java SPI ServiceLoader, Java ToolProvider, Java DocumentationTool, Java JavaCompiler, Java JShellTool, Java DiagnosticListener, Java CompilationTask, Java ModuleElement, Java ModuleLayer, Java ModuleDescriptor, Java ModuleFinder

OLD before GPT Pro: Abstract Classes, Abstract Methods, Abstract Window Toolkit, Access Control Exception, Access Modifiers, Accessible Object, AccessController Class, Action Event, Action Listener, Action Performed Method, Adapter Classes, Adjustment Event, Adjustment Listener, Annotation Processing Tool, Annotations, AnnotationTypeMismatchException, Anonymous Classes, Applet Class, Applet Context, Applet Lifecycle Methods, Application Class Data Sharing, Array Blocking Queue, Array Index Out of Bounds Exception, Array List, Array Store Exception, Arrays Class, Assertion Error, Assertions, Assignment Operator, Asynchronous File Channel, Atomic Boolean, Atomic Integer, Atomic Long, Atomic Reference, Attribute Set, Audio Clip, Authentication Mechanisms, Auto Closeable Interface, Auto Boxing, AWT Components, AWT Event Queue, AWT Listeners, AWT Toolkit, Backing Store, Background Compilation, Batch Updates, Bean Context, Bean Descriptors, Bean Info, Big Decimal Class, Big Integer Class, Binary Compatibility, Binding Utilities, Bit Set Class, Bitwise Operators in Java, Blocking Queue Interface, Boolean Class, Bounded Wildcards, Breakpoint, Buffered Input Stream, Buffered Output Stream, Buffered Reader, Buffered Writer, BufferOverflowException, BufferUnderflowException, Button Class, Byte Array Input Stream, Byte Array Output Stream, Byte Order, ByteBuffer Class, Bytecode Instructions, Bytecode Verifier, Callable Interface, Callable Statement, Calendar Class, Canvas Class, Card Layout, Caret Listener, Case Sensitivity in Java, Casting in Java, Catch Block, Certificate Exception, Character Class, Character Encoding, Character Set, Character.UnicodeBlock, Charset Class, Checked Exceptions, Checkbox Class, Choice Component, Class Class, Class Files, Class Loader, Class Loader Hierarchy, Class Loading Mechanism, Class Not Found Exception, Class Object, Class Path, ClassCastException, ClassCircularityError, ClassFormatError, ClassLoader, ClassNotFoundException, Clone Method, CloneNotSupportedException, Cloneable Interface, Clipboard Class, Cloneable Interface, ClosedChannelException, Collections Framework, Collections Utility Class, Collector Interface, Collectors Class, Color Class, Column Major Order, Comparable Interface, Comparator Interface, Compiler API, Compiler Directives, Compiler Optimization, Component Class, Component Event, Component Listener, Composite Pattern, ConcurrentHashMap, ConcurrentLinkedQueue, ConcurrentModificationException, ConcurrentNavigableMap, ConcurrentSkipListMap, ConcurrentSkipListSet, Condition Interface, Connection Interface, Console Class, Constructor Overloading, Consumer Interface, Container Class, ContainerEvent, Content Handler, ContentHandlerFactory, Context Class Loader, Continue Statement, Control Flow Statements, CountDownLatch Class, CRC32 Class, Credential Management, Critical Section, CyclicBarrier Class, Daemon Threads, Data Class, Data Input Interface, Data Input Stream, Data Output Interface, Data Output Stream, Data Truncation Exception, Date Class, Daylight Saving Time Handling, Deadlock in Java, Debugging Techniques, DecimalFormat Class, Default Methods in Interfaces, Deflater Class, Deprecated Annotation, Design Patterns in Java, Desktop Class, Diamond Operator, Dialog Class, Dictionary Class, DigestInputStream, DigestOutputStream, Direct Byte Buffer, DirectoryStream Interface, Document Object Model, DOM Parsing in Java, Double Brace Initialization, Double Class, Drag and Drop API, Driver Manager, Drop Shadow Effect, Dynamic Binding, Dynamic Proxy Classes, Element Interface, Ellipse2D Class, EmptyStackException, Encapsulation in Java, Enum Classes, Enum Constant, EnumSet Class, Enumeration Interface, EOFException, Error Handling in Java, Error Prone Practices, Event Delegation Model, Event Handling Mechanism, Event Listener Interfaces, Event Object, Event Queue, EventQueue Class, Exception Chaining, Exception Handling Mechanism, Executable Jar Files, Executor Interface, Executor Service, Executors Class, Expression Evaluation, Extends Keyword, Externalizable Interface, File Class, File Channel, File Descriptor, File Filter Interface, File Input Stream, File Lock Mechanism, File Output Stream, File Permission, File Reader, File Writer, FileDialog Class, FilenameFilter Interface, FileNotFoundException, Final Classes, Final Keyword, Finally Block, Finalize Method, Finalizer Guardian Idiom, Float Class, Flow Layout, Flow API, Focus Listener, Font Class, For Each Loop, ForkJoinPool Class, Formatter Class, Frame Class, Functional Interfaces, Future Interface, FutureTask Class, Garbage Collection Mechanism, Garbage Collector, Generics in Java, Generic Methods, Generic Types, Geometry Classes, Glyph Vector, GradientPaint Class, Graphics Class, Graphics2D Class, Grid Bag Constraints, Grid Bag Layout, Grid Layout, GregorianCalendar Class, Group Layout, GUI Components in Java, GZIPInputStream, GZIPOutputStream, Hash Collision, Hash Function, Hash Map Class, Hash Set Class, Hashtable Class, HashCode Method, Headless Exception, Heap Memory, Hello World Program in Java, Hierarchical Inheritance, High-Level Concurrency API, HTTP Client in Java, HTTP Server in Java, Icon Interface, Identifier Naming Convention, If Statement, IllegalArgumentException, IllegalMonitorStateException, IllegalStateException, IllegalThreadStateException, Image Class, ImageIcon Class, Immutable Classes, Import Statement, InaccessibleObjectException, Inheritance in Java, InitialContext Class, Inner Classes, Input Method Framework, Input Stream, InputStreamReader Class, Instance Initializer Block, Instance Variables, InstantiationException, Integer Class, Integer Overflow and Underflow, InterruptedException, InterruptedIOException, Interface in Java, InternalError, Internationalization, IO Exception, IO Streams in Java, Iterable Interface, Iterator Interface, Jar Entry, Jar File, JarInputStream Class, JarOutputStream Class, Java Access Bridge, Java Annotations, Java API Documentation, Java Applets, Java Archive (JAR), Java Beans, Java Bytecode, Java Class Library, Java Collections Framework, Java Community Process, Java Compiler, Java Database Connectivity (JDBC), Java Development Kit (JDK), Java Documentation Comments, Java Flight Recorder, Java Garbage Collector, Java Generics, Java Memory Model, Java Native Interface (JNI), Java Naming and Directory Interface (JNDI), Java Network Launching Protocol (JNLP), Java Platform, Java Plugin, Java Reflection API, Java Remote Method Invocation (RMI), Java Runtime Environment (JRE), Java Security Manager, Java Serialization, Java Server Pages (JSP), Java Stream API, Java Swing, Java Virtual Machine (JVM), Java Web Start, JavaFX Platform, javax Package, Javadoc Tool, JAR Signing Mechanism, JDBC API, JDBC Drivers, JFrame Class, JIT Compiler, JLabel Class, JLayeredPane Class, JList Component, JMenu Component, JOptionPane Class, JPanel Class, JPasswordField Component, JProgressBar Component, JScrollBar Component, JScrollPane Component, JSeparator Component, JSlider Component, JSplitPane Component, JTabbedPane Component, JTable Component, JTextArea Component, JTextField Component, JTextPane Component, JToolBar Component, JTree Component, JVM Arguments, JVM Memory Model, Key Event, Key Listener Interface, Key Stroke Class, KeyException, KeySpec Interface, Keyword in Java, Label Class, Lambda Expressions in Java, Layout Manager, LayoutManager2 Interface, Lazy Initialization, Leaf Nodes, Legacy Classes in Java, LineNumberReader Class, Linked Blocking Queue, Linked Hash Map, Linked Hash Set, Linked List Class, List Interface, List Iterator Interface, Listener Interfaces in Java, Load Factor in HashMap, Locale Class, Lock Interface, Logger Class, Logging API in Java, Long Class, Main Method in Java, MalformedURLException, Map Interface, Map.Entry Interface, Marker Interface, Math Class, Media Tracker, Memory Leak in Java, Memory Management in Java, Menu Class, Message Digest, Method Chaining, Method Overloading, Method Overriding, Methods in Java, MIDI Devices in Java, Mouse Adapter Class, Mouse Event, Mouse Listener Interface, Multi-Catch Exception, Multi-Level Inheritance, Multicast Socket, Multidimensional Arrays, Mutable Objects in Java, Naming Convention in Java, Native Methods, Navigable Map, Navigable Set, Nested Classes in Java, Network Interface Class, NoClassDefFoundError, NoSuchFieldException, NoSuchMethodException, Non-Blocking IO (NIO), Null Pointer Exception, Number Class, Number Format Exception, NumberFormat Class, Object Class, Object Cloning, Object Input Stream, Object Oriented Programming, Object Output Stream, Object Serialization in Java, Observer Pattern, Observable Class, OpenGL in Java, Optional Class, OutOfMemoryError, Override Annotation, Package Declaration, Packages in Java, Paint Interface, Panel Class, Parallel Garbage Collector, Parameter Passing in Java, ParseException, Path Interface, Pattern Class, Piped Input Stream, Piped Output Stream, PixelGrabber Class, Point Class, Polymorphism in Java, Prepared Statement, Primitive Data Types in Java, PrintStream Class, PrintWriter Class, Priority Blocking Queue, Priority Queue Class, Private Access Modifier, Process Class, Process Builder Class, Progress Monitor Class, Properties Class, Protected Access Modifier, Proxy Class, Public Access Modifier, Queue Interface, RadioButton Class, Random Access File, Reader Class, ReadWriteLock Interface, Rectangle Class, Recursive Methods, Reflection API in Java, Reference Queue, Regular Expressions in Java, Remote Method Invocation (RMI), Render Quality, Repeatable Annotations, Resource Bundle Class, Resource Leak in Java, ResultSet Interface, ResultSetMetaData Interface, Retry Logic in Java, Return Statement in Java, Runnable Interface, Runtime Class, Runtime Error, Runtime Exception, Runtime Permissions, Runtime Polymorphism, Scanner Class, Scheduling in Java, Script Engine, Scroll Bar Component, Scroll Pane Component, Security Exception, Security Manager, Semaphore Class, Sequence Input Stream, Serializable Interface, ServerSocket Class, Service Loader, Set Interface, Setter Methods, Shared Memory in Java, Short Class, Single Inheritance, Singleton Pattern in Java, Socket Class, SocketTimeoutException, Sorted Map, Sorted Set, Splash Screen, Spring Framework, SQLException, SSL Socket, Stack Class, StackOverflowError, Standard Edition of Java, StandardOpenOption, Statement Interface, StreamTokenizer Class, Strictfp Keyword, String Buffer Class, String Builder Class, String Class, String Constant Pool, StringIndexOutOfBoundsException, String Interning, String Literal in Java, String Pool in Java, String Tokenizer Class, Strong Typing in Java, Structural Patterns, Stub Class, Subclasses in Java, Superclass in Java, Supplier Interface, Support Classes, Swing Components, Swing Timer, Switch Statement in Java, Synchronized Block, Synchronized Method, System Class, System Properties in Java, Tab Pane Component, Table Model Interface, TCP Connection in Java, Template Method Pattern, Text Area Component, Text Field Component, Text Listener Interface, Thread Class, Thread Group, Thread Interruption, Thread Local Class, Thread Priority, Thread Safety in Java, Thread Scheduling, Throwable Class, Time Zone Class, Timer Class, Timer Task Class, Toolkit Class, ToolTip Manager, Transferable Interface, Transient Keyword, Tree Map Class, Tree Set Class, Try With Resources Statement, Type Erasure in Java, Type Inference in Java, Type Parameters, UI Manager Class, Unary Operator Interface, Unchecked Exceptions, UndeclaredThrowableException, Unicode Support in Java, Unmodifiable Collection, Unsafe Class, URL Class, URLConnection Class, URLDecoder Class, URLEncoder Class, URLStreamHandler Class, URLClassLoader Class, User Interface Components, Varargs in Java, Variable Arguments, Variable Scope in Java, Vector Class, Vendor-Specific Extensions, Viewport Class, Virtual Machine in Java, Volatile Keyword, Wait and Notify Methods, Weak Hash Map, Weak Reference, While Loop in Java, Wildcard Generic Types, Window Adapter Class, Window Event, Window Listener Interface, Wrapper Classes in Java, Write Once Run Anywhere, XML Binding in Java, XML Parsing in Java, XML Schema in Java, XPath Expression in Java, XSLT Transformation in Java, Yield Method in Thread, Zip Entry, Zip File, Zip Input Stream, Zip Output Stream, ZoneId Class, ZoneOffset Class

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Java Bibliography (Effective Java, Head First Java, Java - A Beginner's Guide by Herbert Schildt, Java Concurrency in Practice, Clean Code by Robert C. Martin, Java - The Complete Reference by Herbert Schildt, Java Performance by Scott Oaks, Thinking in Java, Java - How to Program by Paul Deitel, Modern Java in Action, Java Generics and Collections by Maurice Naftalin, Spring in Action, Java Network Programming by Elliotte Rusty Harold, Functional Programming in Java by Pierre-Yves Saumont, Well-Grounded Java Developer, Second Edition, Java Module System by Nicolai Parlog), Manning Java Series, Java Glossary - Glossaire de Java - French, Java Topics, Java Courses, Java Security - Java DevSecOps, Java Standard Library, Java Libraries, Java Frameworks, Java Research, Java GitHub, Written in Java, Java Popularity, Java Awesome List, Java Versions. (navbar_java and navbar_java_detailed - see also navbar_jvm, navbar_java_concurrency, navbar_java_standard_library, navbar_java_libraries, navbar_java_best_practices, navbar_openjdk, navbar_java_navbars, navbar_kotlin)

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