running with command line

[bryan lim]

hi all,

i know this sounds really newbie. but how do i run my swing application on a command line?

[Leonardo Carreira]

What kind of OS that do you use?

firstly, you have to set path all of the libraries that you need..

[Campbell Ritchie]

java MySwingClassWithMainMethod "Frame Title"

/**
 * Starts off {@Link SwingApplication} by invoking its start() method.
 *@param args the Command-line arguments: one argument to be used as the title required.
 */
public static void main(final String[]args)
{
   SwingUtilities.invokeLater(
       new Runnable()
       {
           public void run()
           {
               new SwingApplication(args[0]).start();
           }//end run method
       }//end anonymous Runnable inner class
   );
}//end main

[Maneesh Godbole]

From the command line you can run it like
java MyMainClass where MyMainClass is the one with the main method.

If you got a self executing jar file (where the manifest file includes the Main class entry) you can run it like
java -jar MySwingApp.jar

[bryan lim]

i got this :

  C:\Users\bryan\workspace\NewsMachine\src>java Noose_Machine.java
Exception in thread "main" java.lang.NoClassDefFoundError: Noose_Machine/java
Caused by: java.lang.ClassNotFoundException: Noose_Machine.java
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClassInternal(Unknown Source)
Could not find the main class: Noose_Machine.java.  Program will exit.  

what is wrong ? is it because of the library? how do i add the library specifically?

[Joanne Neal]

You run .class files, not .java files and you don't need the extension
Try
java Noose_Machine

[bryan lim]

i see... that's very noob of me. really sorry about it.

i have another question. i have around seven external libraries which means i have to add in a long list of jar into the command line..

is there a solution to that? like combining them all into a single jar? how do i do that?

[Joanne Neal]

If you're using Java 1.5 or later you can put all the jars into a directory and then use a wild card in your classpath
java -cp <path to myjardirectory>\* Noose_Machine

Note that the wild card is * and not *.jar

Alternatively, when you start writing more complex applications, you can combine all your class files into a jar file and then specify a list of all the required jars in the manifest file for your jar file. You then run your program with the java -jar command. There are plenty examples of this on these forums