Java Tutorial

Java

JDK

• Java Basic

• java.beans

• java.io

• java.lang

• java.lang.annotation

• java.lang.management

• java.lang.reflect

• java.math

• java.net

• java.net.http

• java.nio

• java.nio.channels

• java.nio.charset

• java.nio.file

• java.nio.file.attribute

• java.security

• java.security.cert

• java.sql

• java.text

• java.time

• java.time.chrono

• java.time.format

• java.time.temporal

• java.time.zone

• java.util

• java.util.concurrent

• java.util.concurrent.atomic

• java.util.concurrent.locks

• java.util.function

• java.util.jar

• java.util.prefs

• java.util.regex

• java.util.stream

• java.util.zip

• javax.crypto

• javax.crypto.spec

• javax.jms

• javax.json

• javax.json.stream

• javax.mail

• javax.mail.internet

• javax.naming

• javax.naming.directory

• javax.net

• javax.net.ssl

• javax.script

• javax.servlet

• javax.servlet.http

• javax.sql.rowset

• javax.xml.bind

• javax.xml.parsers

• javax.xml.stream

• javax.xml.transform

• javax.xml.validation

• oracle.sql

• org.json

• org.w3c.dom

Android

• android.app

• android.content

• android.content.pm

• android.graphics

• android.text

• android.util

• android.widget

AWT

• java.awt

• java.awt.datatransfer

• java.awt.event

• java.awt.font

• java.awt.geom

• java.awt.image

• java.awt.print

Swing

• javax.swing

• javax.swing.border

• javax.swing.event

• javax.swing.plaf

• javax.swing.table

• javax.swing.text

• javax.swing.tree

• javax.swing.undo

JavaFX

• javafx.animation

• javafx.application

• javafx.beans

• javafx.beans.binding

• javafx.beans.property

• javafx.beans.value

• javafx.collections

• javafx.concurrent

• javafx.embed.swing

• javafx.event

• javafx.fxml

• javafx.geometry

• javafx.print

• javafx.scene

• javafx.scene.canvas

• javafx.scene.control

• javafx.scene.effect

• javafx.scene.image

• javafx.scene.input

• javafx.scene.layout

• javafx.scene.media

• javafx.scene.paint

• javafx.scene.shape

• javafx.scene.text

• javafx.scene.transform

• javafx.scene.web

• javafx.stage

• javafx.util

Java Basic

• Java Language Basics

  Java Language (29) Data Types (70) Operator (91) Statement (128)
  String (38) enum (7) Array (62) Autobox (7)
  class (40) Method (35) interface (6) Generics (23)
  Exception (29) Javadoc (2) Lambda (21) package import (1)

• Java Features

  Algorithms (23) Byte Array (12) Data Structures (13) Design Patterns (35)
  Directory (7) Network (4) Regular Expression (27) Text File (10)

• OCA OCP Exam

  OCA OCP Exam 1 (100) OCA OCP Exam 2 (100) OCA OCP Exam 3 (100) OCA OCP Exam 4 (100)
  OCA OCP Exam 5 (100) OCA OCP Exam 6 (100) OCA OCP Exam 7 (100) OCA OCP Exam 8 (100)
  OCA OCP Exam 9 (100) OCA OCP Exam 10 (100) OCA OCP Exam 11 (100) OCA OCP Exam 12 (100)
  OCA OCP Exam 13 (100) OCA OCP Exam 14 (100) OCA OCP Exam 15 (100) OCA OCP Exam 16 (100)
  OCA OCP Exam 17 (100) OCA OCP Exam 18 (100) OCA OCP Exam 19 (100) OCA OCP Exam 20 (100)
  OCA OCP Exam 21 (100) OCA OCP Exam 22 (100) OCA OCP Exam 23 (100) OCA OCP Exam 24 (100)
  OCA OCP Exam 25 (100) OCA OCP Exam 26 (100) OCA OCP Exam 27 (100) OCA OCP Exam 28 (100)
  OCA OCP Exam 29 (100) OCA OCP Exam 30 (100) OCA OCP Exam 31 (100) OCA OCP Exam 32 (100)
  OCA OCP Exam 33 (84)

java.beans

Expression (1) PropertyChangeListener (1) VetoableChangeListener (2) XMLDecoder (1)
XMLEncoder (1)

java.io

BufferedInputStream (7) BufferedOutputStream (3) BufferedReader (18) BufferedWriter (7)
ByteArrayInputStream (2) ByteArrayOutputStream (2) CharArrayReader (3) CharArrayWriter (3)
Console (2) DataInputStream (2) DataOutputStream (2) Externalizable (1)
File (37) FileFilter (1) FileInputStream (6) FilenameFilter (1)
FileOutputStream (4) FileReader (1) FileWriter (2) FilterReader (1)
InputStream (12) InputStreamReader (2) ObjectInputStream (2) ObjectOutputStream (3)
OutputStream (4) OutputStreamWriter (1) PipedInputStream (1) PrintStream (3)
PrintWriter (7) PushbackInputStream (2) PushbackReader (1) RandomAccessFile (7)
Reader (6) SequenceInputStream (1) Serializable (6) StreamTokenizer (1)
StringReader (1) Writer (2)

java.lang

AutoCloseable (2) Boolean (1) Character (6) Class (22)
Cloneable (2) Comparable (4) Double (4) Exception (2)
Float (2) Integer (3) Iterable (2) Long (3)
Math (18) ModuleLayer (1) Package (1) Process (2)
ProcessBuilder (5) ProcessHandle (6) Runtime (3) Runtime Version (1)
String (145) StringBuffer (8) StringBuilder (6) System (13)
Thread (29) ThreadGroup (3) ThreadLocal (1)

java.lang.annotation

Annotation (11)

java.lang.management

RuntimeMXBean (1) OperatingSystemMXBean (1)

java.lang.reflect

Array (1) Constructor (2) Field (6) InvocationHandler (1)
Method (9) Modifier (5) Proxy (1)

java.math

BigDecimal (3) BigInteger (7)

java.net

DatagramPacket (1) DatagramSocket (10) HttpURLConnection (3) InetAddress (3)
InetSocketAddress (1) JarURLConnection (1) MulticastSocket (4) NetworkInterface (3)
ServerSocket (6) Socket (7) URI (2) URL (4)
URLConnection (3) URLEncoder (1)

java.net.http

HttpResponse (1)

java.nio

ByteBuffer (76) ByteOrder (2) CharBuffer (12) DoubleBuffer (4)
FloatBuffer (5) IntBuffer (6) LongBuffer (4) MappedByteBuffer (5)
ShortBuffer (4)

java.nio.channels

AsynchronousFileChannel (5) AsynchronousServerSocketChannel (6) AsynchronousSocketChannel (3) CompletionHandler (1)
DatagramChannel (6) FileChannel (17) FileLock (1) ReadableByteChannel (1)
SeekableByteChannel (5) Selector (2)

java.nio.charset

Charset (3) CharsetDecoder (1) CharsetEncoder (1)

java.nio.file

DirectoryStream (3) Files (70) FileStore (10) FileSystem (7)
FileSystems (2) FileVisitor (1) Path (34) PathMatcher (3)
Paths (2) SecureDirectoryStream (1) SimpleFileVisitor (5) WatchService (1)

java.nio.file.attribute

AclEntry (1) AclFileAttributeView (3) BasicFileAttributeView (2) DosFileAttributes (2)
FileOwnerAttributeView (4) FileTime (4) GroupPrincipal (1) PosixFileAttributes (3)
PosixFileAttributeView (7) PosixFilePermission (3) UserDefinedFileAttributeView (1) UserPrincipal (2)
UserPrincipalLookupService (1)

java.security

AlgorithmConstraints (1) GuardedObject (2) KeyPairGenerator (1) KeyStore (3)
MessageDigest (2) SecureRandom (4) Security (5) SignedObject (2)

java.security.cert

Certificate (2)

java.sql

CallableStatement (2) Clob (2) Connection (3) DatabaseMetaData (2)
Date (6) Driver (1) DriverManager (1) PreparedStatement (5)
ResultSet (5) Statement (8) Time (3) Timestamp (4)

java.text

AttributedString (6) DateFormat (8) DateFormatSymbols (4) DecimalFormat (7)
DecimalFormatSymbols (1) Format (1) NumberFormat (3) SimpleDateFormat (44)

java.time

Clock (6) DayOfWeek (7) Duration (4) Instant (12)
LocalDate (49) LocalDateTime (19) LocalTime (10) Month (7)
MonthDay (4) OffsetDateTime (5) OffsetTime (1) Period (7)
Year (2) YearMonth (3) ZonedDateTime (22) ZoneId (6)
ZoneOffset (4)

java.time.chrono

HijrahChronology (2) JapaneseChronology (2) MinguoChronology (2) ThaiBuddhistChronology (2)
ThaiBuddhistDate (4)

java.time.format

DateTimeFormatter (13) DateTimeFormatterBuilder (1)

java.time.temporal

ChronoField (1) ChronoUnit (4) TemporalAccessor (1) TemporalAdjuster (3)
TemporalAdjusters (1) TemporalQuery (5)

java.time.zone

ZoneRules (1)

java.util

AbstractList (1) ArrayDeque (2) ArrayList (13) Arrays (29)
Base64 (5) BitSet (3) Calendar (34) Collection (2)
Collections (19) Comparator (4) Currency (3) Date (56)
Deque (1) DoubleSummaryStatistics (2) EnumMap (1) EnumSet (1)
EventListener (1) EventObject (1) Formatter (14) GregorianCalendar (14)
HashMap (5) HashSet (2) Hashtable (2) IntSummaryStatistics (1)
Iterator (6) LinkedHashMap (3) LinkedHashSet (1) LinkedList (11)
List (54) ListIterator (4) ResourceBundle (1) Locale (11)
LongSummaryStatistics (1) Map (35) NavigableMap (8) Objects (3)
Observer (2) Optional (5) OptionalInt (2) PriorityQueue (3)
Properties (12) Queue (2) Random (15) Scanner (12)
Set (9) SortedMap (1) SortedSet (3) Spliterator (1)
Stack (2) StringTokenizer (2) TimerTask (1) TimeZone (5)
TreeMap (9) TreeSet (11) UUID (1) Vector (3)

java.util.concurrent

BlockingDeque (1) Callable (1) ConcurrentHashMap (2) ConcurrentLinkedDeque (2)
ConcurrentSkipListMap (1) CopyOnWriteArrayList (1) CountDownLatch (3) CyclicBarrier (2)
DelayQueue (1) Exchanger (2) Executors (13) ForkJoinPool (10)
LinkedBlockingDeque (2) LinkedTransferQueue (1) Phaser (7) PriorityBlockingQueue (2)
RecursiveTask (2) ScheduledThreadPoolExecutor (1) Semaphore (4) ThreadFactory (2)
ThreadLocalRandom (3) ThreadPoolExecutor (4) TimeUnit (2)

java.util.concurrent.atomic

AtomicInteger (2) AtomicIntegerArray (1) AtomicLong (2)

java.util.concurrent.locks

Lock (1) ReentrantLock (8) ReentrantReadWriteLock (2)

java.util.function

Function (1)

java.util.jar

JarOutputStream (2)

java.util.prefs

Preferences (1)

java.util.regex

Matcher (3)

java.util.stream

Collectors (19) DoubleStream (4) IntStream (25) LongStream (5)
Stream (93)

java.util.zip

Adler32 (1) CRC32 (1) CRC32C (1) Deflater (1)
Inflater (1) ZipFile (4) ZipInputStream (1) ZipOutputStream (2)

javax.crypto

Cipher (7) KeyGenerator (1) SealedObject (3)

javax.crypto.spec

SecretKeySpec (5)

javax.jms

Connection (1) Message (1) MessageConsumer (2) MessageProducer (1)
QueueBrowser (1)

javax.json

Json (1)

javax.json.stream

JsonParser (1)

javax.mail

Authenticator (1) Folder (5) Message (3) Session (1)
Transport (1)

javax.mail.internet

InternetAddress (1) MimeBodyPart (2) MimeMessage (1) MimeMultipart (1)

javax.naming

Context (1)

javax.naming.directory

DirContext (8)

javax.net

SocketFactory (1)

javax.net.ssl

SSLSocket (3) SSLServerSocket (2) HttpsURLConnection (1)

javax.script

Invocable (1) ScriptContext (1) ScriptEngine (16) ScriptEngineFactory (1)
ScriptEngineManager (4) SimpleBindings (1) SimpleScriptContext (2)

javax.servlet

Filter (1)

javax.servlet.http

HttpServlet (1) HttpServletRequest (2) HttpServletResponse (2)

javax.sql.rowset

CachedRowSet (1) FilteredRowSet (1) JdbcRowSet (1) JoinRowSet (1)

javax.xml.bind

Marshaller (1) Unmarshaller (1)

javax.xml.parsers

DocumentBuilder (2)

javax.xml.stream

XMLEventReader (1) XMLStreamReader (1) XMLStreamWriter (1)

javax.xml.transform

Transformer (3)

javax.xml.validation

Validator (2)

oracle.sql

ARRAY (2)

org.json

JSONArray (1) JSONObject (2)

org.w3c.dom

Document (5) Element (6) Node (1)

android.app

ActivityManager (1) KeyguardManager (1)

android.content

Intent (2)

android.content.pm

PackageInfo (1)

android.graphics

Color (1)

android.text

ClipboardManager (1)

android.util

Base64 (1)

android.widget

TextView (1)

java.awt

AWTEvent (1) BasicStroke (4) BorderLayout (6) CardLayout (3)
Color (5) Component (3) Container (1) Dimension (1)
EventQueue (1) FileDialog (2) FlowLayout (5) FocusTraversalPolicy (5)
Font (5) FontMetrics (5) GradientPaint (2) Graphics (18)
Graphics2D (42) GraphicsDevice (1) GridBagConstraints (1) GridBagLayout (2)
GridLayout (7) Image (1) Insets (1) ItemSelectable (1)
KeyboardFocusManager (12) KeyEventDispatcher (1) LayoutManager2 (1) LinearGradientPaint (1)
Point (1) RadialGradientPaint (1) Rectangle (1) TexturePaint (1)
Toolkit (4)

java.awt.datatransfer

Clipboard (1)

java.awt.event

ActionEvent (14) ActionListener (7) AdjustmentListener (1) AWTEventListener (1)
ComponentListener (1) ContainerListener (1) FocusAdapter (1) FocusEvent (2)
FocusListener (3) HierarchyListener (1) InputEvent (4) Event (3)
ItemEvent (1) ItemListener (4) KeyAdapter (1) KeyEvent (15)
KeyListener (1) MouseAdapter (2) MouseEvent (9) MouseMotionAdapter (1)
MouseMotionListener (2) MouseWheelListener (3) WindowAdapter (2) WindowEvent (2)
WindowFocusListener (1) WindowStateListener (1)

java.awt.font

NumericShaper (1) LineBreakMeasurer (1) TextAttribute (5) TextLayout (1)

java.awt.geom

Arc2D (4) Area (1) CubicCurve2D (1) Ellipse2D (1)
GeneralPath (1) Line2D (2) Path2D (1) Point2D (1)
QuadCurve2D (2) Rectangle2D (1) RoundRectangle2D (1)

java.awt.image

BufferedImage (15) ConvolveOp (1)

java.awt.print

PrinterJob (2) Printable (1)

javax.swing

AbstractAction (4) Action (3) ActionMap (1) BorderFactory (4)
BoundedRangeModel (2) Box (8) BoxLayout (5) ButtonGroup (3)
DefaultComboBoxModel (2) DefaultListCellRenderer (1) DefaultListModel (1) GroupLayout (4)
Icon (2) ImageIcon (2) InputMap (1) InputVerifier (1)
JButton (30) JCheckBox (9) JCheckBoxMenuItem (3) JColorChooser (2)
JComboBox (14) JComponent (17) JDesktopPane (1) JDialog (1)
JEditorPane (1) JFileChooser (2) JFormattedTextField (27) JFrame (45)
JInternalFrame (6) JLabel (24) JLayer (1) JList (11)
JMenu (6) JMenuItem (10) JOptionPane (7) JPanel (11)
JPasswordField (6) JPopupMenu (2) JProgressBar (2) JRadioButton (2)
JRadioButtonMenuItem (3) JRootPane (3) JScrollBar (2) JScrollPane (2)
JSlider (2) JSpinner (18) JTabbedPane (5) JTable (54)
JTextArea (5) JTextField (39) JTextPane (1) JToggleButton (1)
JToolBar (2) JTree (73) KeyStroke (8) ListSelectionModel (3)
SpinnerDateModel (2) SpinnerListModel (3) SpinnerModel (1) SpinnerNumberModel (3)
SpringLayout (3) SwingUtilities (8) SwingWorker (6) Timer (2)
ToolTipManager (1) UIManager (9)

javax.swing.border

Border (1) TitledBorder (1)

javax.swing.event

AncestorListener (1) CaretListener (1) ChangeListener (8) DocumentEvent (1)
DocumentListener (2) EventListenerList (2) HyperlinkListener (1) InternalFrameAdapter (1)
InternalFrameListener (1) ListDataListener (3) ListSelectionEvent (3) MenuDragMouseListener (1)
MenuKeyListener (1) MenuListener (1) PopupMenuListener (1) TreeExpansionListener (1)
TreeModelListener (1) TreeSelectionListener (1) TreeWillExpandListener (1) UndoableEditListener (2)

javax.swing.plaf

LayerUI (2)

javax.swing.table

AbstractTableModel (2) DefaultTableCellRenderer (2) DefaultTableModel (5) JTableHeader (2)
TableCellRenderer (3) TableColumn (9) TableColumnModel (2) TableModel (3)

javax.swing.text

DateFormatter (1) DefaultFormatter (3) DefaultFormatterFactory (2) DocumentFilter (2)
Element (1) ElementIterator (1) JTextComponent (1) MaskFormatter (1)
NumberFormatter (2) PlainDocument (3) StyledEditorKit (1)

javax.swing.tree

DefaultMutableTreeNode (7) DefaultTreeCellRenderer (3) DefaultTreeModel (5) TreeModel (2)
TreeNode (2) TreePath (4) TreeSelectionModel (1)

javax.swing.undo

UndoManager (2)

javafx.animation

FadeTransition (2) KeyFrame (5) PathTransition (6) SequentialTransition (1)
Timeline (6) TranslateTransition (1)

javafx.application

Application (13) Platform (1)

javafx.beans

Observable (1)

javafx.beans.binding

Bindings (1) NumberBinding (1) DoubleBinding (1)

javafx.beans.property

DoubleProperty (2) IntegerProperty (6) ReadOnlyIntegerProperty (1) SimpleDoubleProperty (1)
SimpleIntegerProperty (1) SimpleStringProperty (1) StringProperty (1)

javafx.beans.value

ObservableValue (1)

javafx.collections

ObservableList (3) ObservableMap (2) ObservableSet (2)

javafx.concurrent

Task (1)

javafx.embed.swing

SwingNode (1)

javafx.event

EventHandler (1)

javafx.fxml

FXMLLoader (1)

javafx.geometry

Point2D (1)

javafx.print

PrinterJob (2) Printer (4)

javafx.scene

Group (1) Scene (6)

javafx.scene.canvas

Canvas (2) GraphicsContext (8)

javafx.scene.control

CSS (10) Button (10) CheckBox (4) CheckMenuItem (1)
ChoiceBox (2) ComboBox (3) ContextMenu (2) DatePicker (1)
Hyperlink (1) Label (9) ListView (6) Menu (1)
MenuBar (3) MenuItem (4) ProgressBar (1) ProgressIndicator (1)
RadioButton (6) RadioMenuItem (2) ScrollBar (2) Separator (1)
SeparatorMenuItem (1) Slider (2) SplitPane (1) TableView (1)
TabPane (1) TextArea (4) TextField (14) ToggleGroup (1)
ToggleButton (2) ToolBar (1) TreeView (2)

javafx.scene.effect

Bloom (1) BoxBlur (1) DropShadow (1) Glow (1)
InnerShadow (1) Reflection (1)

javafx.scene.image

Image (1) ImageView (4)

javafx.scene.input

KeyCode (2) KeyEvent (2) MouseEvent (12)

javafx.scene.layout

BorderPane (7) FlowPane (2) GridPane (13) HBox (6)
Pane (7) ScrollPane (3) StackPane (7) VBox (4)

javafx.scene.media

AudioClip (2) AudioSpectrumListener (1) Media (3) MediaPlayer (10)

javafx.scene.paint

Color (4) LinearGradient (3) RadialGradient (3)

javafx.scene.shape

Arc (8) Circle (22) CubicCurve (1) Ellipse (8)
Line (15) Path (3) Polygon (6) Polyline (6)
QuadCurve (1) QuadCurveTo (1) Rectangle (11) Shape (1)
SVGPath (1)

javafx.scene.text

Font (2) FontWeight (1) Text (17)

javafx.scene.transform

Rotate (1) Scale (1) Shear (1) Translate (1)

javafx.scene.web

WebView (4) WebEngine (5)

javafx.stage

Stage (4)

javafx.util

Duration (1)