Java tutorials
Java is a versatile, object-oriented programming language created by Sun Microsystems (now owned by Oracle). Renowned for its platform independence through the "write once, run anywhere" principle enabled by the Java Virtual Machine (JVM), Java is a go-to choice for developing web applications, enterprise software, and mobile apps. Its robustness, scalability, and extensive ecosystem have made it a cornerstone of software development worldwide.
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Java offers a rich set of features, including automatic memory management through garbage collection, multithreading capabilities for concurrent programming, and a comprehensive standard library that simplifies tasks such as data manipulation, networking, and file handling. With its strong emphasis on security and backward compatibility, Java has remained a top choice for building reliable and long-lasting applications across diverse industries.
Widely used in enterprise environments, Java powers some of the world's largest banking, e-commerce, and healthcare systems. It is also integral to Android app development through the Android SDK. With a plethora of frameworks like Spring, Hibernate, and JavaFX, as well as an active developer community, Java continues to thrive as a powerful and adaptable language for modern software development.
Java
- Java tutorial
- Java 2D games
- Java 2D graphics
- Java basics
- Java lexical structure
- Java operator
- Java data type
- Java float types
- Java enum type
- Java String
- Java String format
- Java flow control
- Java switch expression
- Java array
- Java package
- Java exception
- Java method
- Java OOP
- Java collection
- Java interface
- Java Serializable
- Java Externalizable
- Java Future
- Java Random
- Java SecureRandom
- Java ThreadLocalRandom
- Java Comparable and Comparator
- Java Bubble Sort
- Java Insertion Sort
- Java Selection Sort
- Java Merge Sort
- Java Quick Sort
- Java Heap Sort
- Java Counting Sort
- Java Radix Sort
- Java Bucket Sort
- Java Shell Sort
- Gson tutorial
- Java JSON
- Java mail
- Java DOM
- Java SAX
- Java JAXB
- Java JSON Processing
- Java H2 tutorial
- MongoDB Java
- Java Regular Expressions
- Java FastExcel
- Java PDFBox
- Java file
- Java Files.list
- Java Files.walk
- Java DirectoryStream
- Java external/internal iterator
- Java file size
- Java create directory
- Creating file in Java
- Log4j tutorial
- JUnit 5 tutorial
- Java RequestDispatcher
- Java GET/POST
- Java HttpClient
- Java InputStream
- Java FileOutputStream
- Java FileInputStream
- Java ZipInputStream
- Java FileWriter
- Java FileReader
- Java forEach
- Java lambda expression
- Java annotations
- Jetty tutorial
- Java Undertow
- Embedded Tomcat
- Validation filter
- Hibernate Validator
- Displaying image in Java
- Introduction to Spark
- Java ResourceBundle
- Java Servlet
- Java Socket
- FreeMarker tutorial
- Android tutorial
- Jsoup tutorial
- Jinjava tutorial
- JFreeChart tutorial
- ImageIcon tutorial
- Copying file in Java
- Java file time
- Java list directory contents
- Java append file
- Java ArrayList
- Java read/write ICO files
- Java int to String conversion
- Java HashSet
- Java HashMap
- Java filter map
- Java static keyword
- HashMap iteration in Java
- Filtering a list in Java
- Java sort list
- Reading a web page in Java
- Java console application
- Google Guava
- Opencsv tutorial
- Java StringJoiner
- The history of element iteration
- Java record
- Java class
- Java Function
- Java Predicate
- Java Optional
- Java Consumer
- Java Supplier
- Java StringBuilder
- Java split string
- Java add string
- Java NumberFormat
- Java DecimalFormat
- Java Locale
- Java BigDecimal
- Apache FileUtils
- Java Stream
- Java Stream collect
- Java Stream filter
- Java Stream reduce
- Java Stream map
- Java Stream findFirst/findAny
- Java InputStreamReader
- Reading text files in Java
- Java Unix time
- Java current datetime
- Java Instant
- Java DateTimeFormatter
- Java ZonedDateTime
- Java LocalDateTime
- Java LocalTime
- Java LocalDate
- Java TemporalAdjusters
- Java TemporalAccessors
- Java fibonacci
- Java Palindrome
- Java ProcessBuilder
- Java BufferedReader
- Java 11 new features
- Java JAR
- Java Thread
- Java AtomicLong
- Java Jdbi
- Java SQLite
- Java volatile
- Java synchronized
- Java Semaphore
- Java CountDownLatch
- Java CyclicBarrier
- Java Pitfalls
- Java AutoCloseable
- Java NullPointerException
- Java RuntimeException
- Java RuntimeException Subclasses
Java lang API
- Java Object class
- Java String class
- Java StringBuilder class
- Java StringBuffer class
- Java Thread class
- Java Runnable interface
- Java Class class
- Java System class
- Java Math class
- Java Integer class
- Java Double class
- Java Boolean class
- Java Character class
- Java Byte class
- Java Short class
- Java Long class
- Java Float class
- Java Exception class
- Java RuntimeException class
- Java Error class
- Java Throwable class
- Java Runtime class
- Java Process class
- Java ProcessBuilder class
- Java Enum class
- Java Void class
- Java CharSequence interface
- Java StrictMath class
- Java Number class
- Java ThreadLocal class
- Java Package class
- Java Override annotation
- Java Deprecated annotation
- Java SuppressWarnings annotation
- Java AutoCloseable interface
- Java Iterable interface
- Java Comparable interface
Java io API
- Java BufferedInputStream class
- Java BufferedOutputStream class
- Java BufferedReader class
- Java BufferedWriter class
- Java ByteArrayInputStream class
- Java ByteArrayOutputStream class
- Java CharArrayReader class
- Java CharArrayWriter class
- Java CharConversionException class
- Java Closeable interface
- Java Console class
- Java DataInput interface
- Java DataInputStream class
- Java DataOutput interface
- Java DataOutputStream class
- Java EOFException class
- Java Externalizable interface
- Java File class
- Java FileDescriptor class
- Java FileFilter interface
- Java FileInputStream class
- Java FilenameFilter interface
- Java FileNotFoundException class
- Java FileOutputStream class
- Java FileReader class
- Java FileWriter class
- Java FilterInputStream class
- Java FilterOutputStream class
- Java FilterReader class
- Java FilterWriter class
- Java Flushable interface
- Java InputStream class
- Java InputStreamReader class
- Java InterruptedIOException class
- Java InvalidClassException class
- Java InvalidObjectException class
- Java IOError class
- Java IOException class
- Java LineNumberReader class
- Java NotActiveException class
- Java NotSerializableException class
- Java ObjectInput interface
- Java ObjectInputStream class
- Java ObjectInputValidation interface
- Java ObjectOutput interface
- Java ObjectOutputStream class
- Java ObjectStreamClass class
- Java ObjectStreamConstants interface
- Java ObjectStreamException class
- Java ObjectStreamField class
- Java OutputStream class
- Java OutputStreamWriter class
- Java PipedInputStream class
- Java PipedOutputStream class
- Java PipedReader class
- Java PipedWriter class
- Java PrintStream class
- Java PrintWriter class
- Java PushbackInputStream class
- Java PushbackReader class
- Java RandomAccessFile class
- Java Reader class
- Java SequenceInputStream class
- Java Serializable interface
- Java StreamCorruptedException class
- Java StreamTokenizer class
- Java StringReader class
- Java StringWriter class
- Java SyncFailedException class
- Java UncheckedIOException class
- Java Writer class
- Java ObjectInputValidation interface
- Java InvalidObjectException class
- Java ObjectInputValidation interface
Java Regex API
- Java Pattern class
- Java Matcher class
- Java MatchResult interface
- Java PatternSyntaxException class
- Java Pattern.compile method
- Java Pattern.matcher method
- Java Pattern.matches method
- Java Pattern.split method
- Java Pattern.pattern method
- Java Pattern.flags method
- Java Pattern.quote method
- Java Pattern.asPredicate method
- Java Pattern.splitAsStream method
- Java Matcher.matches method
- Java Matcher.lookingAt method
- Java Matcher.find method
- Java Matcher.start method
- Java Matcher.end method
- Java Matcher.group method
- Java Matcher.groupCount method
- Java Matcher.replaceAll method
- Java Matcher.replaceFirst method
- Java Matcher.appendReplacement method
- Java Matcher.appendTail method
- Java Matcher.reset method
- Java Matcher.region method
- Java Matcher.regionStart method
- Java Matcher.regionEnd method
- Java Matcher.hasTransparentBounds method
- Java Matcher.useTransparentBounds method
- Java Matcher.hasAnchoringBounds method
- Java Matcher.useAnchoringBounds method
- Java Matcher.toMatchResult method
- Java Matcher.results method
- Java MatchResult.start method
- Java MatchResult.end method
- Java MatchResult.group method
- Java MatchResult.groupCount method
- Java String.matches method
- Java String.split method
- Java String.replaceAll method
- Java String.replaceFirst method
- Java Pattern.asMatchPredicate method
- Java Matcher.replaceFirst method
Java DateTime API
- Java Instant class
- Java LocalDate class
- Java LocalTime class
- Java LocalDateTime class
- Java ZonedDateTime class
- Java OffsetDateTime class
- Java OffsetTime class
- Java ZoneId class
- Java ZoneOffset class
- Java Duration class
- Java Period class
- Java Clock class
- Java DayOfWeek enum
- Java Month enum
- Java Year class
- Java YearMonth class
- Java MonthDay class
- Java DateTimeFormatter class
- Java DateTimeFormatterBuilder class
- Java DecimalStyle class
- Java FormatStyle enum
- Java ResolverStyle enum
- Java SignStyle enum
- Java TextStyle enum
- Java Chronology interface
- Java ChronoLocalDate interface
- Java ChronoLocalDateTime interface
- Java ChronoZonedDateTime interface
- Java ChronoPeriod interface
- Java AbstractChronology class
- Java HijrahChronology class
- Java HijrahDate class
- Java JapaneseChronology class
- Java JapaneseDate class
- Java JapaneseEra class
- Java MinguoChronology class
- Java MinguoDate class
- Java ThaiBuddhistChronology class
- Java ThaiBuddhistDate class
- Java IsoChronology class
- Java DateTimeParseException class
- Java Temporal interface
- Java TemporalAccessor interface
- Java TemporalAdjuster interface
- Java TemporalAmount interface
- Java TemporalField interface
- Java TemporalQuery interface
- Java TemporalUnit interface
- Java ValueRange class
- Java WeekFields class
- Java ChronoField enum
- Java ChronoUnit enum
- Java IsoFields class
- Java JulianFields class
- Java ZoneRules class
- Java ZoneRulesProvider class
- Java ZoneOffsetTransition class
- Java ZoneOffsetTransitionRule class
- Java ZoneOffsetTransitionRule.TimeDefinition enum
- Java DateTimeException class
- Java ZoneRulesException class
Java Collections functions
- Java Collections.addAll method
- Java Collections.binarySearch method
- Java Collections.checkedCollection method
- Java Collections.checkedList method
- Java Collections.checkedMap method
- Java Collections.checkedSet method
- Java Collections.checkedSortedMap method
- Java Collections.checkedSortedSet method
- Java Collections.copy method
- Java Collections.disjoint method
- Java Collections.emptyList method
- Java Collections.emptyMap method
- Java Collections.emptySet method
- Java Collections.fill method
- Java Collections.frequency method
- Java Collections.max method
- Java Collections.min method
- Java Collections.nCopies method
- Java Collections.replaceAll method
- Java Collections.reverse method
- Java Collections.rotate method
- Java Collections.shuffle method
- Java Collections.singleton method
- Java Collections.singletonList method
- Java Collections.singletonMap method
- Java Collections.sort method
- Java Collections.swap method
- Java Collections.synchronizedCollection method
- Java Collections.synchronizedList method
- Java Collections.synchronizedMap method
- Java Collections.synchronizedSet method
- Java Collections.synchronizedSortedMap method
- Java Collections.synchronizedSortedSet method
- Java Collections.unmodifiableCollection method
- Java Collections.unmodifiableList method
- Java Collections.unmodifiableMap method
- Java Collections.unmodifiableSet method
- Java Collections.unmodifiableSortedMap method
- Java Collections.unmodifiableSortedSet method
Java Functional API
- Java Function interface
- Java BiFunction interface
- Java UnaryOperator interface
- Java BinaryOperator interface
- Java Predicate interface
- Java BiPredicate interface
- Java Consumer interface
- Java BiConsumer interface
- Java Supplier interface
- Java IntFunction interface
- Java IntPredicate interface
- Java IntConsumer interface
- Java IntSupplier interface
- Java IntUnaryOperator interface
- Java IntBinaryOperator interface
- Java ToIntFunction interface
- Java ToIntBiFunction interface
- Java LongFunction interface
- Java LongPredicate interface
- Java LongConsumer interface
- Java LongSupplier interface
- Java LongUnaryOperator interface
- Java LongBinaryOperator interface
- Java ToLongFunction interface
- Java ToLongBiFunction interface
- Java DoubleFunction interface
- Java DoublePredicate interface
- Java DoubleConsumer interface
- Java DoubleSupplier interface
- Java DoubleUnaryOperator interface
- Java DoubleBinaryOperator interface
- Java ToDoubleFunction interface
- Java ToDoubleBiFunction interface
- Java ObjIntConsumer interface
- Java ObjLongConsumer interface
- Java ObjDoubleConsumer interface
- Java BooleanSupplier interface
- Java Predicate interface
- Java Function.identity method
- Java Function.compose method
- Java Function.andThen method
last modified April 26, 2025