Was ist neu in Java 6, 7, 8, ...

Was ist neu in Java 6, 7, 8, ... Arne Bachmann Simulations- und Softwaretechnik Deutsches Zentrum für Luft- und Raumfahrt KP SC-VK 07.10.2008

Historischer Überblick ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Historischer Überblick ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Ältere interessante Features ,[object Object],public strictfp class Example1 { float calculate(float x) { return x / 13.333f; } } // oder public class Example2 { strictfp float calculate(float x) { return x / 13.333f; } }

Ältere interessante Features ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Ältere interessante Features ,[object Object],[object Object],// import static java.lang.Math.*; import static java.lang.Math.PI; double r = cos(PI * theta); int i = new Integer(2); // unboxing Float f = 3.5f; // boxing Vector<Long> vl = new Vector<Long>(); vl.add(0l);

Ältere interessante Features ,[object Object],int min(int firstArg, int... remainingArgs) { int min = firstArg; for (int arg: remainingArgs) { if (arg < min) { min = arg; } } return min; } // Anwendung: x = min(2,1); y = min(2,1,3); z = min(2,1,4,0,7,4,5,5,5,8,2,4);

Java SE 6 ,[object Object],[object Object],[object Object],[object Object],[object Object],if( !randWord.isEmpty() ) { // no "length" check /*do something */ }

Java SE 6 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Java SE 6 Desktop Performanz Grafik: Danny Coward (2007)

Java SE 6 Server Performanz Grafik: Danny Coward (2007)

Java SE 6 APIs ,[object Object],[object Object],[object Object],[object Object],@WebService public class CircleFunction { public double getArea(final double r) { return java.lang.Math.PI * (r * r); } public static void main(String[] args) { Endpoint.publish( "http://localhost:8080/" + "WS/function", new CircleFunction()); } }

Java SE 6 APIs ,[object Object],[object Object],[object Object],ScriptEngineManager factory = new ScriptEngineManager(); ScriptEngine js = factory.getEngineByName(" JavaScript "); js.put("myVariable", 100); js.eval("print('Hello, World ' + String(myVariable))");

Java SE 6 APIs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],interface ABQuery extends BaseQuery { @Select(sql = "SELECT * from table where a = ?1 and b = ?2") DataSet<LoanApplication> getAB(String A, String B); }

Java SE 6 APIs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Java SE 6 APIs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Java SE 6 APIs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Java SE 6 Update 10 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Java SE 6 Update 10 Grafik: Danny Coward (2007)

Java SE 7 ,[object Object],[object Object],enum Typ { eins (1), drei (3), zehn (10); } switch (answer.toLowerCase()) { case "yes": /* code */ case "no": /* error */ }

Java SE 7 APIs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Java SE 7 APIs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Grafik: Sun JSR

Java SE 7 Modularisierung ,[object Object],[object Object],[object Object],[object Object],superpackage de.dlr.test { // super-package exports: export de.dlr.test.Class1; export de.dlr.test.doc.*; // super-package members: member de.dlr.test.Class1; member de.dlr.test.doc.* member de.dlr.test.secret.*; }

Java SE 7 Modularisierung ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Java SE 7 GUI ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Java SE 7 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Grafik: Doug Lea

Java SE 7 ,[object Object],[object Object],[object Object],[object Object],[object Object]

Java SE 7 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Java SE 7 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Map<@NonNull String, @NonEmpty List<@Readonly Document>> files; void monitorTemperature() throws @Critical TemperatureException{};

Java SE 7 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Java SE 7 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Java SE 7 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Java SE 7 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],class Person { void setWeight(Measurable<Mass> weight); } double weightInKg = weight.doubleValue(KILOGRAM); // Oder lb. double weightInLiter = weight.doubleValue(LITER); // Error!

Java SE 7, 8, … Mögliche Spracherweiterungen ,[object Object],[object Object],[object Object],List content = new LinkedList(10); Content[1] = "Hallo"; Point p = new Point(); p->X = 56; final map = new HashMap<String, Integer>(); // oder map := new HashMap<String, Integer>();

Java SE 7, 8, … Mögliche Spracherweiterungen ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Foo f2 = Foo.new(SubclassOfFoo.class, 1, 2); BigInteger bi = new BigInt("1") + new BigInteger("1");

Java SE 7, 8, … Mögliche Spracherweiterungen ,[object Object],[object Object],[object Object],[object Object],feature.add( <reviewed> <who>{ reviewer }</who>; <when>{ dc.encode(time) }</when>; </reviewed> );

Quellen JDK 1.0 – J2SE 5.0 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Quellen Java SE 6 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Quellen Java SE 7 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Quellen Java SE 8, … ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Was ist neu in Java 6, 7, 8, ...

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