Programster: Getting Started with Java + GTK

You can build Java applications that interface "better" your Linux desktop through the use of Java GTK. At the time of this writing, vertsion 4.1 is out

Steps

Install Java if you haven't already

Install the java-gnome packages which will install the gtk to /usr/share/java

sudo apt-get install libjava-gnome-java

In your favourite text editor, copy and paste the following and save it as Main.java

import org.gnome.gdk.Event;
import org.gnome.gtk.Gtk;
import org.gnome.gtk.Widget;
import org.gnome.gtk.Window;
import org.gnome.notify.*;
import org.gnome.notify.Notification;


public class Main 
{
    public static void main(String[] args) 
    {
        // gtk init
        Gtk.init(args);

        // create main window
        final Window window = new Window();

        // connect delete event to main window
        window.connect(new Window.DeleteEvent() {
            public boolean onDeleteEvent(Widget source, Event event) {
                Gtk.mainQuit();
                return false;
            }
        });

        // create notification
        Notify.init("My Application");

        String iconPath = "/full/path/to/your/icon.svg";

        Notification notification = new Notification("Notification Title", "message", iconPath);

        // show widgets
        window.show();
        notification.show();

        // main loop
        Gtk.main();
    }
}

You will need to change the iconPath variable to point to one of your icons if you want to see an icon in the notification that will pop up when you run the program.

Now open a terminal and navigate to where you saved the file and run the following commands:

javac -classpath $CLASSPATH:/usr/share/java/gtk.jar Main.java
java -classpath $CLASSPATH:/usr/share/java/gtk.jar Main

Things are much easier if you use an IDE like Netbeans to manage the GTK library, but I wanted to cater for users who don't yet have an IDE. I also did not want to go into the specifics for Netbeans and Eclipse users.

That's it! You should have seen a notification in the top right of your screen pop up, as well as window that you can close which had nothing inside it.

Getting Started with Java + GTK

Steps

References

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