This will fail to compile; it’s a bit too close to Java to work. In particular, in Swift you can’t pass a class into a function like invokeLater does; instead, Swift uses closures, which Java lacks and must make up with anonymous classes.
Saagar Jha > On Jan 20, 2017, at 4:16 PM, Ethin Probst via swift-users > <swift-users@swift.org> wrote: > > Is the following code valid swift 3 (and later) code? If not, is it > translatable to swift 3? This was translated using Elements Oxidizer > (http://elementscompiler.com/elements/oxidizer.aspx) using the Hello > World Java Swing application > (https://docs.oracle.com/javase/tutorial/displayCode.html?code=https://docs.oracle.com/javase/tutorial/uiswing/examples/start/HelloWorldSwingProject/src/start/HelloWorldSwing.java > and > https://docs.oracle.com/javase/tutorial/uiswing/examples/start/HelloWorldSwingProject/src/start/HelloWorldSwing.java). > It will run in RemObjects Silver in Visual Studio, but is it valid > Swift 3 code? You don't have to try and compile it--as Elements is the > only platform that compiles Swift to the JVM (I think?) but does it > follow the Swift 3 language specification (or the latest version, > whatever that may be)? > Code: > [start code] > import javax.swing > > public class HelloWorldSwing { > private static func createAndShowGUI() { > //Create and set up the window. > var frame: JFrame! = JFrame("HelloWorldSwing") > frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE) > //Add the ubiquitous "Hello World" label. > var label: JLabel! = JLabel("Hello World") > frame.getContentPane().add(label) > //Display the window. > frame.pack() > frame.setVisible(true) > } > > public static func main(_ args: String![]) { > //Schedule a job for the event-dispatching thread: > //creating and showing this application's GUI. > javax.swing.SwingUtilities.invokeLater(class Runnable { > func run() { > createAndShowGUI() > } > }) > } > } > [end code] > -- > Signed, > Ethin D. Probst > _______________________________________________ > swift-users mailing list > swift-users@swift.org > https://lists.swift.org/mailman/listinfo/swift-users
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