What's new in Java 2024

Outline

NOTE: JEPS only includes software features

• Introduction
  • Name
  • What do you do?
  • What is your experience with Java?
  • What IDE do you usually use?
  • How would grade (Novice, Intermediate, Advanced) your experience with Lambdas/Streams/Optionals?
  • What Java version are you using for work/home?
  • What other JVM languages do you use?
• SDKMan.io
• Java Almanac
• JDK 9
  • JShell JEP 222
  • Immutable/Convenience Factory Methods for Collections JEP 269
  • Module System JEP 261
  • JLink JEP 282
  • Process Handles
  • Flow API JEP 266
  • Functional and Stream Additions
  • HTTP2 Client (Preview) JEP 110
  • Var Handles JEP 193
  • IntStream CharSequence.chars()
  • Objects.checkIndex()
• JDK 10
  • Local-Variable Type Inference JEP 286
  • copyOf in List, Map, and Set
• JDK 11
  • String class additions:
    • lines()
    • isBlank()
    • repeat()
    • strip()
    • stripLeading()
    • stripTrailing()
  • Predicate.not(Predicate)
  • HTTPClient API JEP 321
  • Files.readString() and Files.writeString()
  • Optional.isEmpty()
  • Collection.toArray(IntFunction)
  • Null-Based Input, Output Stream and Readers
  • Local-Variable Syntax for Lambda Parameters JEP 323
• JDK 12
  • switch expressions (Preview)
  • teeing collector
  • Files.mismatch(Path, Path)
  • Microbenchmark Suite JEP 230
• JDK 13
  • Text Blocks (First Preview) JEP 355
  • Reimplemented Socket API JEP 353
  • FileSystems.newFileSystem() Method
  • switch expressions (Second Preview) JEP 254
• JDK 14
  • Records (Preview) JEP 359
  • Text Blocks (Second Preview) JEP 368
  • Pattern Matching for instanceof (Preview) JEP 305
  • switch expressions (Final) JEP 361
  • Reimplemented DataSocket API JEP 353
  • Helpful NullPointerExceptions JEP 358
• JDK 15
  • Sealed Classes (First Preview) JEP 360
  • Records (Second Preview) JEP 384
  • Pattern Matching for instanceof (Second Preview) JEP 375
  • Text Blocks JEP 378
  • Hidden Classes JEP 371
• JDK 16
  • Stream.toList, Stream.toArray
  • Vector API (First Incubator) JEP 338
  • Records (Final) JEP 395
  • Sealed Classes (Second Preview) JEP 397
  • Packaging Tool JEP 392
  • Foreign-Memory Access API (Third Incubator) JEP 393
  • Pattern Matching for instanceof (Final) JEP 394
• JDK 17
  • Pattern Matching for Switch (Preview) JEP 406
  • Sealed Classes JEP 409
  • Enhanced Pseudo-Random Number Generators JEP 356
  • Vector API (Second Incubator) JEP 414
  • Foreign Function & Memory API (First Incubator) JEP 412
  • java.util.HexFormat
  • Process.inputReader(), Process.outputWriter(), Process.errorReader()
• JDK 18
  • Pattern Matching for Switch (Second Preview) JEP 420
  • Simple Web Server JEP 408
  • Code Snippets in Java API Documentation JEP 413
  • Foreign Function & Memory API (Second Incubator) JEP 412
  • Vector API (Third Incubator) JEP 417
  • Math.ceilDiv, Math.ceilDivExact, Math.ceilMod, Math.divideExact, Math.floorDivExact, Math.unsignedMultiplyHigh
  • StrictMath.ceilDiv, StrictMath.ceilDivExact, StrictMath.ceilMod, StrictMath.divideExact, StrictMath.floorDivExact, StrictMath.unsignedMultiplyHigh
  • FileInputStream.transferTo(OutputStream)
• JDK 19
  • Project Loom Virtual Threads (First Preview) JEP 425
  • Pattern Matching for Switch (Third Preview) JEP 427
  • Foreign Function & Memory API (First Preview) JEP 424
  • Vector API (Fourth Incubator) JEP 426
  • Project Loom Structured Concurrency (First Incubator) JEP 428
  • CompletableFuture.exceptionNow(), CompletableFuture.resultNow(), CompletableFuture.state()
• JDK 20
  • Pattern Matching for switch (Forth Preview) JEP 433
  • Record Patterns (Second Preview) JEP 432
  • Project Loom Virtual Threads (Second Preview) JEP 436
  • Foreign Function & Memory API (Second Preview) JEP 434
  • Project Loom Structured Concurrency (Second Incubator) JEP 437
• JDK 21
  • Record Patterns JEP 440
  • Pattern Matching for switch JEP 441
  • Foreign Function & Memory API (Third Preview) JEP 442
  • Unnamed Patterns and Variables (Preview) JEP 443
  • Virtual Threads JEP 444
  • Unnamed Classes and Instance Main Methods (Preview) JEP 445
  • Scoped Values (Preview) JEP 446
  • Statements before super() (Preview) JEP 447
  • Vector API (Sixth Incubator) JEP 448
  • Structured Concurrency (Preview) JEP 453
  • String Templates (First Preview) JEP 430
• JDK 22
  • Statements before super() (Preview) JEP 447
  • Foreign Function & Memory API JEP 454
  • Primitive Types in Patterns, instanceof, and switch (Preview) JEP 455
  • Unnamed Patterns and Variables JEP 456
  • Class File API (Preview) JEP 457
  • String Templates (Second Preview) JEP 459
  • Launch Multi-File Source-Code Programs JEP 458
  • Vector API (Seventh Incubator) JEP 460
  • Stream Gatherers (Preview) JEP 461
  • Structured Concurrency (Second Preview) JEP 462
  • Implicit Declared Classes and Enhanced Main Methods (Second Preview) JEP 463
  • Scoped Values (Second Preview) JEP 464
• To Be Announced (Possibly)
  • Markdown Documentation Comments JEP 467
  • Derived Record Creation (Preview) JEP 468