Hello Java Web start
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import java.awt.Font;
import javax.swing.JFrame;
import javax.swing.JLabel;
public class HelloJWS {
/**
* Create the GUI and show it. For thread safety, this method should be
* invoked from the event-dispatching thread.
*/
private static void createAndShowGUI() {
//Make sure we have nice window decorations.
JFrame.setDefaultLookAndFeelDecorated(true);
//Create and set up the window.
JFrame frame = new JFrame("HelloJWS");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//Add the "HelloJWS" label.
JLabel label = new JLabel();
label.setHorizontalAlignment(JLabel.CENTER);
label.setFont(label.getFont().deriveFont(Font.PLAIN));
frame.getContentPane().add(label);
//Set label text after testing for Java Web Start.
String text = null;
try {
Class sm = javax.jnlp.ServiceManager.class;
//If we reach this line, we're running in an environment
//such as Java Web Start that provides JNLP services.
text = "<html>You're running an application "
+ "using Java<font size=-2><sup>TM</sup></font> "
+ "Web Start!</html>";
} catch (java.lang.NoClassDefFoundError e) {
//If no ServiceManager, we're not in Java Web Start.
text = "<html>You're running an application, "
+ "but <b>not</b> using "
+ "Java<font size=-2><sup>TM</sup></font> "
+ "Web Start!</html>";
}
label.setText(text);
//Display the window.
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
//Schedule a job for the event-dispatching thread:
//creating and showing this application's GUI.
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}
});
}
}
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