Java swing on HPUX

[Jeff Picton]

Hello everybody

Can anyone tell me the HPUX classpath to compile a java program ?

for example :-

java -classpath.:/home/me/lnfdir/newlnf.jar HelloWorldSwing

[Mike Stroyan]

You don't need to add anything to the default classpath to compile and run java swing.

You can download the SDK from http://www.hp.com/go/java, if you don't already have it. Then you just need the java bin directory in your path.

% PATH=$PATH:/opt/java1.4/bin
% javac HelloWorldSwing.java
% java HelloWorldSwing

[Jeff Picton]

Hello

When I do this I get the following :-

$ PATH=$PATH:/opt/java1.3/bin
$ javac HelloWorldSwing.java
$ java HelloWorldSwing
Exception in thread "main" java.lang.NoSuchMethodError: main

Is this a problem with java1.3 ?

Thanks

[Pieter_5]

Hi, you need to add a main function to to program

public static void main(String[] args){
}

If you make a typo you will get same message.

[Pieter_5]

Please post you code to the forum

[Jeff Picton]

Hi

I have seen many java programs without the main function and when I put this in I get the following :-

HelloWorldSwing.java:3: 'class' or 'interface' expected
public static void main(String[] args) {
^
1 error

[Jeff Picton]

here is the code :-

import javax.swing.*;

public class HelloWorldSwing {
/**
* 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.
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}
});
}
}

~
"HelloWorldSwing.java" 24 lines, 621 characters
$ /opt/java1.3/bin/javac HelloWorldSwing.java
HelloWorldSwing.java:3: 'class' or 'interface' expected
public static void main(String[] args) {
^
1 error

[Jeff Picton]

Hi

I have managed to now compile this but have an invalid DISPLAY variable to run the program.

Can anyone explain how to define the DISPLAY variable ?

Jeff