Tim Slattery<Slattery_T@bls.gov> wrote:
I must be doing something stupid.
I have a very simple command-line program in Eclipse, just a
System.out.println("Hello World"). It runs just fine in the IDE. So I
use File|Export|Export, and select "Runnable JAR file". A JAR is
created.
And it doesn't work. I can double-click on it, or I can call it from a
command line. I get nothing. No "Hello world", no error message, no
nothing. What have I missed?
More info:
Here's the class:
public class Main {
public static void main(String[] args)
{
System.out.println("Here I am!");
try
{
SimpleDateFormat sdf = new
SimpleDateFormat("MM/dd/yyyy");
sdf.setLenient(false);
Date mydate = sdf.parse("2/29/1900");
System.out.println("Good date: " + mydate.toString());
}
catch (ParseException ex)
{
System.out.println("ParseException: " +
ex.getMessage());
}
}
/* (non-Java-doc)
* @see java.lang.Object#Object()
*/
public Main() {
super();
}
I export "Main.jar". To invoke from the command line, I type
"Main.jar". Nothing but a command prompt. I have jedit installed. If I
go to its directory and type "jedit.jar", it jumps right up. Therefore
I assume that the JRE can be found.
You are missing something here, that can't compile as it is. Try