java-10

So I'm building this music player app which plays notes which are dragged and dropped onto a JLabel. When I hit the play button, I want each note to be highlighted with a delay value corresponding to that note. I used a Swing Timer for this but the problem is, it just loops with a constant delay which is specified in the constructor. playButton.addActionListener(e -> { timerI = 0; System.out.println("Entered onAction"); Timer t = new Timer(1000, e1 -> { if (timerI < 24) { NoteLabel thisNote = (NoteLabel)staff.getComponent(timerI); NoteIcon thisIcon = thisNote.getIcon(); String noteName =

I'm struggling with this, and any information would be greatly appreciated. I have a project that has been using JAXB for some time to construct a Java Model from an XML Schema and uses that model. This has been working in Java 8 for some tie now. However, I've upgraded to Open JDK 10 and I get this error when I attempt to Unmarshall an XML file into the Java objects.... java.lang.IllegalArgumentException: javax.xml.bind.UnmarshalException: unexpected element (uri:"http://www.minestar.cat.com/namespace/units", local:"units"). Expected elements are <{}units> at minestar.units.schema.parser

So starting in Java 9, we can use var to declare local variables: var s = "cool"; is there a way to use a similar construct when declaring fields? class Container { final var s = "cool"; // does not compile tmk } doesn't seem like it from what I can tell. Jacob G. is there a way to use a similar construct when declaring fields? No. According to JEP 286: Local-Variable Type Inference : This treatment would be restricted to local variables with initializers, indexes in the enhanced for-loop, and locals declared in a traditional for-loop; it would not be available for method formals, constructor

I switched to ubuntu 18.04. Which has java 10 as default jvm Now my apps that use javafx cannot compile anymore. cannot find symbol [ERROR] symbol: class ObservableMap I tried to add parameters to the maven-compiler-plugin to load the javafx.graphics module. <plugin> <artifactId>maven-compiler-plugin</artifactId> <configuration> <compilerArgs> <arg>--add-modules</arg> <arg>javafx.graphics</arg> </compilerArgs> </configuration> </plugin> result : [ERROR] COMPILATION ERROR : [INFO] ------------------------------------------------------------- [ERROR] module not found: javafx.graphics of course,

I moved my RCP application from Eclipse Oxygen to Photon, and also from Java 8 to Java 10. The code compiles and the application works fine if I start it from Eclipse. However, when I try to build my application, I get an error: plug-in JavaSE_0.0.0 has not been found Missing Constraint: Bundle-RequiredExecutionEnvironment: JavaSE-10 Host plug-in JavaSE_0.0.0 has not been found. I can't find any useful solution on Google. Maybe some of you can help me. My manifest file contains this header: Bundle-RequiredExecutionEnvironment: JavaSE-10 This seems to be an Eclipse bug. Eclipse seems not to

I installed JDK 10 to try out the new features, and I got a big hung up on var - for some reason, even though the JDK was added to IntelliJ (version 2018.1), the following code still won't compile, saying Java cannot find the symbol var : public class Variations { public static void main(String[] args) { var local = "foo"; System.out.println(local); } } Am I missing something obvious here, or is there an option in IntelliJ I should enable? EDIT: Both project and module SDK and Language Level are set to the Java 10 installation and lvl. 10 (though not the X - experimental level). Apparently,

This question already has answers here : Can a local variable with an inferred type be reassigned to a different type? (2 answers) Closed last year . Java 10 allows to do an anonymous class with a var like: var a1 = new Object(){}; var a2 = new Object(){}; But this assignment will throw an error: a1 = a2; jshell> a1 = a2; | Error: | incompatible types: $1 cannot be converted to $1 | a1 = a2; | ^^ Based on the error log, why can't Java 10 assign two inferred var s as an anonymous class to each other, but it can do the same for other types like Long , String , etc.? Each new Object(){} creates a

AFAIK, var is not keyword in Java . It is reserved type name . I wonder that in what circumstances we should use/avoid it. Are there principles about its usage? import java.util.HashMap; public class Test { public static void main(String[] args) { var x = new HashMap<> (); // legal var y = new HashMap<String, Integer>(); // legal var z = "soner"; // legal System.out.println(z); var umm = null; // xx wrong xx // var foo; // xx wrong usage without initializer xx // var var = 5; // legal } } I know one reason, that we actually use in our project. Whenever there is a variable that is "big" we

This is a regression in Java 10, refer to the bug report for further updates: JDK-8204949 Consider the following Java FX code, where b starts invisible: a.disableProperty().bind(b.visibleProperty()) If an application utilizing such code is run on Java 10 VM, then from the first time b becomes visible, a will always be rendered as if it was disabled. Of course, during the time while a is not really disabled (despite being rendered with a gray overlay), you can still interact with that element. E.g. you can edit text in input controls, click buttons/links and so on, the events get propagated