Programming TIPS!

A site on Java API Examples and TIPS.

Java TIPS

Use TimeUnit.sleep instead of Thread.sleep (July 1, 2023)
Simple Builder Design Pattern (July 1, 2023)
How to Use the Simple Web Server (jwebserver) (June 24, 2023)
Basics of Record class (June 10, 2023)
Delete a directory with contents (June 10, 2023)
Don't use the legacy File class, use new I/O APIs instead (June 3, 2023)
An exhaustive list of format strings (May 20, 2023)
Get the current time (May 20, 2023)
Basics of Date and Time (May 13, 2023)
Don't use the legacy Date and Calendar classes, use new APIs instead (May 13, 2023)
Use System.nanoTime to measure elapsed time (May 13, 2023)

Index

@
- @Override (annotation) (September 26, 2023) New!
A
- AbstractCollection (June 17, 2023)
- AbstractInterruptibleChannel (July 31, 2023)
- AbstractList (June 17, 2023)
- AbstractMap (June 17, 2023)
- AbstractQueue (June 17, 2023)
- AbstractSequentialList (June 17, 2023)
- AbstractSet (June 17, 2023)
- AccessibleObject (July 8, 2023)
- Adler32 (July 22, 2023)
- AnnotatedElement (September 24, 2023) Update!
- Appendable (April 8, 2023)
- ArithmeticException (May 27, 2023)
- ArrayBlockingQueue (June 30, 2023)
- ArrayDeque (June 24, 2023)
- ArrayList (June 17, 2023)
- Arrays (April 8, 2023)
- Attr (XML) (June 10, 2023)
- AutoCloseable (June 25, 2023)
B
- Base64 (April 1, 2023)
- Base64.Decoder (April 1, 2023)
- Base64.Encoder (April 1, 2023)
- BaseStream (March 18, 2023)
- BiConsumer (July 1, 2023)
- BiFunction (July 1, 2023)
- BigDecimal (May 27, 2023)
- BigInteger (May 27, 2023)
- BiPredicate (July 1, 2023)
- BlockingDeque (July 5, 2023)
- BlockingQueue (July 20, 2023)
- Boolean (June 24, 2023)
- Buffer (August 8, 2023)
- BufferedInputStream (July 15, 2023)
- BufferedOutputStream (July 15, 2023)
- BufferedReader (June 3, 2023)
- BufferedWriter (June 3, 2023)
- Byte (June 24, 2023)
- ByteArrayInputStream (June 3, 2023)
- ByteArrayOutputStream (July 8, 2023)
- ByteBuffer (August 21, 2023)
- ByteChannel (August 17, 2023)
C
- Calendar (September 20, 2023) New!
- Callable (March 18, 2023)
- CancellationException (May 31, 2023)
- Channel (July 20, 2023)
- Character (June 24, 2023)
- CharacterData (XML) (June 10, 2023)
- CharSequence (April 30, 2023)
- Charset (January 5, 2023)
- Checksum (July 22, 2023)
- ChoiceFormat (November 25, 2022)
- Class (July 8, 2023)
- ClassCastException (May 27, 2023)
- ClassNotFoundException (May 27, 2023)
- Cleaner (July 1, 2023)
- Cloneable (June 10, 2023)
- CloneNotSupportedException (June 10, 2023)
- Closeable (June 3, 2023)
- Collection (May 20, 2023)
- Collections (March 11, 2023)
- Collectors (July 1, 2023)
- Comment (XML) (June 10, 2023)
- CompactNumberFormat (November 27, 2022)
- Comparable (May 27, 2023)
- Comparator (May 27, 2023)
- ConcurrentHashMap (June 17, 2023)
- ConcurrentHashMap.KeySetView (June 12, 2023)
- ConcurrentLinkedDeque (June 23, 2023)
- ConcurrentLinkedQueue (June 21, 2023)
- ConcurrentMap (June 2, 2023)
- ConcurrentModificationException (May 27, 2023)
- ConcurrentSkipListMap (June 17, 2023)
- ConcurrentSkipListSet (June 17, 2023)
- Condition (May 16, 2023)
- ConsoleHandler (logging) (May 27, 2023)
- Constructor (reflection) (July 8, 2023)
- Consumer (March 18, 2023)
- CopyOnWriteArrayList (May 25, 2023)
- CopyOnWriteArraySet (June 17, 2023)
- CountDownLatch (October 12, 2022)
- CRC32 (July 22, 2023)
- CRC32C (July 22, 2023)
- Currency (December 1, 2022)
- CyclicBarrier (April 26, 2023)
D
- DataInput (July 15, 2023)
- DataInputStream (July 15, 2023)
- DataOutput (July 15, 2023)
- DataOutputStream (July 15, 2023)
- Date (September 18, 2023)
- DateTimeException (May 27, 2023)
- DateTimeParseException (May 27, 2023)
- DayOfWeek (May 28, 2023)
- DecimalFormat (November 30, 2022)
- Deflater (ZIP) (February 14, 2023)
- DeflaterInputStream (ZIP) (July 15, 2023)
- DeflaterOutputStream (ZIP) (July 20, 2023)
- Deque (June 29, 2023)
- DirectoryNotEmptyException (July 15, 2023)
- Document (XML) (June 10, 2023)
- DocumentBuilder (XML) (April 1, 2023)
- DocumentBuilderFactory (XML) (March 25, 2023)
- DOMImplementation (XML) (June 10, 2023)
- DOMImplementationLS (XML) (June 10, 2023)
- Double (April 30, 2023)
- DoubleBuffer (August 25, 2023)
- DoubleStream (May 20, 2023)
- Driver (JDBC) (December 30, 2022)
- Duration (May 13, 2023)
E
- Element (XML) (June 10, 2023)
- Entity (XML) (June 10, 2023)
- EntityReference (XML) (June 10, 2023)
- Enum (April 8, 2023)
- Error (July 8, 2023)
- Exception (May 27, 2023)
- Exchanger (April 28, 2023)
- Executable (July 8, 2023)
- Executor (March 18, 2023)
- Executors (March 18, 2023)
- ExecutorService (May 27, 2023)
F
- Field (reflection) (July 8, 2023)
- File (September 7, 2023)
- FileAlreadyExistsException (May 27, 2023)
- FileHandler (logging) (May 27, 2023)
- FileLock (April 10, 2023)
- Files (March 4, 2023)
- FileStore (Storage) (December 8, 2022)
- FileSystemException (May 27, 2023)
- FileVisitor (July 22, 2023)
- FilterInputStream (July 15, 2023)
- FilterOutputStream (July 15, 2023)
- FilterReader (June 3, 2023)
- Float (June 24, 2023)
- FloatBuffer (August 30, 2023)
- Flushable (July 13, 2023)
- Format (November 21, 2022)
- Formatter (logging) (April 22, 2023)
- Formatter (String Syntax) (December 6, 2022)
- Function (March 18, 2023)
- Future (May 16, 2023)
- Future.State (May 27, 2023)
- FutureTask (March 25, 2023)
G
- GatheringByteChannel (September 13, 2023)
- GZIPInputStream (ZIP) (July 15, 2023)
- GZIPOutputStream (ZIP) (July 15, 2023)
H
- Handler (logging) (April 15, 2023)
- HashMap (June 17, 2023)
- HashSet (June 17, 2023)
- HexFormat (July 8, 2023)
- HttpClient (July 8, 2023)
- HttpClient.Version (June 24, 2023)
- HttpHeaders (July 1, 2023)
- HttpRequest (June 24, 2023)
- HttpRequest.BodyPublishers (July 1, 2023)
- HttpRequest.Builder (July 1, 2023)
- HttpResponse (June 24, 2023)

I
- IllegalAccessException (May 27, 2023)
- IllegalArgumentException (May 27, 2023)
- IllegalStateException (May 27, 2023)
- IndexOutOfBoundsException (July 1, 2023)
- Inflater (ZIP) (February 16, 2023)
- InflaterInputStream (ZIP) (July 15, 2023)
- InflaterOutputStream (ZIP) (July 15, 2023)
- InputStream (March 11, 2023)
- InputStreamReader (July 15, 2023)
- Instant (March 18, 2023)
- IntBuffer (August 8, 2023)
- Integer (March 11, 2023)
- InterruptedException (May 27, 2023)
- InterruptibleChannel (July 20, 2023)
- IntStream (May 20, 2023)
- IOException (June 10, 2023)
- Iterable (March 11, 2023)
- Iterator (March 11, 2023)
J
- JShell (April 1, 2023)
L
- Level (logging) (April 15, 2023)
- LinkedBlockingDeque (July 11, 2023)
- LinkedBlockingQueue (July 6, 2023)
- LinkedHashMap (June 17, 2023)
- LinkedHashSet (June 17, 2023)
- LinkedList (June 17, 2023)
- List (August 12, 2023)
- LocalDate (March 11, 2023)
- LocalDateTime (March 11, 2023)
- Locale (November 21, 2022)
- LocalTime (March 11, 2023)
- Lock (May 10, 2023)
- Logger (logging) (April 22, 2023)
- LogManager (logging) (April 22, 2023)
- Long (June 24, 2023)
- LongBuffer (August 23, 2023)
- LSSerializer (XML) (June 10, 2023)
M
- Map (August 26, 2023)
- MappedByteBuffer (September 5, 2023)
- Matcher (regex) (April 1, 2023)
- MatchResult (regex) (April 8, 2023)
- Math (June 3, 2023)
- MathContext (April 30, 2023)
- Member (July 8, 2023)
- Method (reflection) (July 8, 2023)
- Month (May 13, 2023)
N
- Node (XML) (March 25, 2023)
- Normalizer (December 3, 2022)
- NoSuchFieldException (May 27, 2023)
- NoSuchFileException (May 27, 2023)
- NoSuchMethodException (May 27, 2023)
- NullPointerException (July 1, 2023)
- Number (April 22, 2023)
- NumberFormat (November 27, 2022)
O
- Object (June 10, 2023)
- Objects (March 4, 2023)
- OffsetDateTime (June 3, 2023)
- OffsetTime (May 20, 2023)
- Optional (June 3, 2023)
- OutOfMemoryError (July 8, 2023)
- OutputStream (March 11, 2023)
- OutputStreamWriter (July 15, 2023)
P
- Path (May 20, 2023)
- Pattern (regex) (April 1, 2023)
- Period (May 13, 2023)
- PhantomReference (July 1, 2023)
- PipedReader (June 3, 2023)
- PipedWriter (June 3, 2023)
- Predicate (March 18, 2023)
- PrintStream (July 15, 2023)
- PrintWriter (June 3, 2023)
- PriorityBlockingQueue (July 27, 2023)
- PriorityQueue (July 24, 2023)
- Process (March 26, 2023)
- ProcessBuilder (May 20, 2023)
- ProcessBuilder.Redirect (March 9, 2023)
- ProcessHandle (March 26, 2023)
- ProcessHandle.Info (March 28, 2023)
- PushbackReader (June 3, 2023)
Q
- Queue (June 24, 2023)
R
- Random (June 3, 2023)
- RandomGenerator (June 3, 2023)
- Readable (March 11, 2023)
- ReadableByteChannel (August 11, 2023)
- Reader (March 26, 2023)
- ReentrantLock (June 28, 2023)
- Reference (April 30, 2023)
- ReflectiveOperationException (May 27, 2023)
- RoundingMode (May 13, 2023)
- Runnable (March 18, 2023)
- Runtime (February 24, 2023)
- RuntimeException (May 27, 2023)
S
- Scanner (July 22, 2023)
- ScatteringByteChannel (September 11, 2023)
- SeekableByteChannel (September 1, 2023)
- Semaphore (May 13, 2023)
- Serializable (December 14, 2022)
- Set (May 20, 2023)
- Short (June 24, 2023)
- ShortBuffer (August 10, 2023)
- SimpleFileVisitor (July 22, 2023)
- SimpleFormatter (logging) (May 27, 2023)
- SoftReference (July 1, 2023)
- Spliterator (April 15, 2023)
- StackWalker (July 8, 2023)
- StandardCharsets (January 9, 2023)
- StandardCopyOption (File) (May 13, 2023)
- Stream (May 20, 2023)
- Stream.Builder (June 24, 2023)
- StreamHandler (logging) (May 27, 2023)
- StreamTokenizer (January 27, 2023)
- StrictMath (July 15, 2023)
- String (August 12, 2023)
- StringBuffer (May 20, 2023)
- StringBuilder (May 20, 2023)
- StringJoiner (April 8, 2023)
- StringReader (July 15, 2023)
- StringWriter (July 15, 2023)
- Supplier (March 18, 2023)
- System (April 22, 2023)
T
- TemporalAdjusters (May 13, 2023)
- Text (XML) (June 10, 2023)
- Thread (March 18, 2023)
- Throwable (March 18, 2023)
- TimeUnit (July 1, 2023)
- TimeZone (September 22, 2023) New!
- Transformer (XML) (April 1, 2023)
- TransformerFactory (XML) (April 1, 2023)
- TreeMap (June 17, 2023)
- TreeSet (June 24, 2023)
U
- UnsupportedOperationException (May 27, 2023)
- URI (June 1, 2023)
- URL (May 30, 2023)
- UUID (April 1, 2023)
W
- WeakHashMap (July 1, 2023)
- WeakReference (July 1, 2023)
- WritableByteChannel (August 14, 2023)
- Writer (March 11, 2023)
X
- XMLFormatter (logging) (May 27, 2023)
Y
- Year (May 13, 2023)
Z
- ZipEntry (February 20, 2023)
- ZipFile (February 22, 2023)
- ZipInputStream (July 15, 2023)
- ZipOutputStream (July 15, 2023)
- ZonedDateTime (March 18, 2023)
- ZoneId (March 11, 2023)
- ZoneOffset (May 13, 2023)

Programming TIPS!

Java TIPS

Category

Annotation

Base

Buffer

Channel

Checksum

Collection

Database(JDBC)

Design

Exception

File

Functional Interface

Internationalization

IO

Logging

Network

Number

Process

Random

Reference

Reflection

Regex

Stream

String

Thread

Time

Tool

Utility

XML

ZIP

Index