Java 9

, 2017

- Jigsaw

Jshell

Ahead-of-Time

Process API

Images API -

HTTP 2

Java 9: 2017

Java 9

Java 7

10

,

Jigsaw

Java , :

: 137

JavaFX: 30

XML: 10

java.base: 19

Jigsaw:

, com.sun.* .

.

- .

,

, , , .

tab

/

;

JShell Java 9

: main, .

- "Hello World!".

- Spring, Hibernate, , JS - , , - , .

JShell

JRE, JDK

Ahead-of-Time

jaotc ( JIT ) .

AoT , Java , - , . - , , , .

java.base, , , . , 64- Linux. .

, , . iOS , Java Apple.

.
java.util.concurrent.Flow:

Flow.Processor Flow.Publisher Flow.Subscriber Flow.Subscription

, . . .Reactive Streams API
Publish Subscribe Framework

java.lang.ProcessHandle:

pid

. , : ProcessHandle.onExit().Process API

java.awt.image.MultiResolutionImage . , , , .

: . java.awt.Graphics . Images API

Java 8: :

Map immutableMap =
Collections.unmodifiableMap( new HashMap() {{ put("key1", "Value1"); put("key2", "Value2"); put("key3", "Value3"); }});

Java 9:

List immutableList = List.of("one", "two");Set iSet = Set.of("value1", "value2");Map iMap = Map.of("key1", "Value1", "key2", "Value2");

Java 8. . .

.

, .Private

try-- Java 7.
, , . :

void printFileJava7() throws IOException { try (FileInputStream myInput = new FileInputStream("myfile.txt")) { int data = myInput.read(); while(data != -1){ System.out.print((char) data); data = myInput.read(); } }}

Try--

Java 9 try, , , .

void printFileJava9() throws IOException { final FileInputStream myInput = new FileInputStream("myfile.txt") try (myInput) { int data = myInput.read(); while(data != -1){ System.out.print((char) data); data = myInput.read(); } }}

Try--

Diamond operator .

List preJava7 = new ArrayList();List java7 = new ArrayList();

, . :

List list = new ArrayList(){ ... };

@Deprecated Java API .

@Deprecated forRemoval since. Deprecated

HTTP API HTTP/2 -. API HTTPURLConnection. , , . : HTTP- :

URI testPageURI = new URI("http://127.0.0.1:8080/testPage");CompletableFuture nonBlockingResponse = HttpRequest .create(testPageURI) .GET().responseAsync();int tries = 0;while (!nonBlockingResponse.isDone() && tries++ < 5) { Thread.sleep(5); } if (nonBlockingResponse.isDone()) { HttpResponse response = nonBlockingResponse.get(); System.out.println("status code : " + response.statusCode() + " --> " + response.body(HttpResponse.asString()));} else { nonBlockingResponse.cancel(true); System.out.println("Cancelling, could not get response");}

HTTP 2

Desktop Java . - . JavaFX ! : , , , - .

java.awt.Desktop . , , , .

, , , .. , , , , , .

, . , OS X Windows.

Applet API

Java

javac Java 1.4 .

. .

Optional, Stream or

SafeVarrargs

TIFF, , Java 2D

UTF-8

JAR

ECMAScript 6.

, Docker

Unicode 8.0

,

JVM

Stack-Walking API stack traces.

Java

JavaDoc HTML 5

JSON API

(var)

, Java 10 Java 9

http://programtalk.com/java/java-9-new-features/http://openjdk.java.net/projects/jigsaw/quick-starthttp://download.java.net/java/jdk9/docs/api/overview-summary.htmlhttps://habrahabr.ru/company/piter/blog/271941/https://habrahabr.ru/company/piter/blog/272861/https://tproger.ru/news/jaotc-wtf/,