RE: NoSuchMethodError because of signature?

It's from the old c convention. argv is short for argument vector where a vector is a one-dimension array.

-----Original Message-----
From: java400-l-bounces@xxxxxxxxxxxx [mailto:java400-l-bounces@xxxxxxxxxxxx] On Behalf Of Gary L Peskin
Sent: Monday, July 18, 2011 5:33 PM
To: 'Java Programming on and around the IBM i'
Subject: RE: NoSuchMethodError because of signature?

The main method has to accept an array of Strings, even if you're not actually passing anything in. You need to have:

public static void main(String[] argv)
{
...
}

You don't need to name the variable argv -- you can name it whatever you want.

HTH,
Gary

-----Original Message-----
From: java400-l-bounces@xxxxxxxxxxxx [mailto:java400-l-
bounces@xxxxxxxxxxxx] On Behalf Of Peter Dow
Sent: Monday, July 18, 2011 3:19 PM
To: Java Programming on and around the iSeries / AS400
Subject: NoSuchMethodError because of signature?

Moving right along with my testjava.java program, I got it compiled,
and when I attempt to run it with

qsh cmd('java /home/pdow/testjava.class')

I get the following error:

Exception in thread "main" java.lang.NoSuchMethodError:
testjava.main(ÝLjava/lang/String;)V

qsh cmd('javap -s -public -classpath $CLASSPATH
/home/pdow/testjava.class')

shows

Compiled from "testjava.java"
public class testjava extends java.lang.Object{ public testjava();
Signature: ()V
public static void main();
Signature: ()V
}

What's going on? Why does the error seem to indicate I should be
passing it a string?

--*
Peter Dow*/
Dow Software Services, Inc.
909 793-9050
pdow@xxxxxxxxxxxxxxx <mailto:pdow@xxxxxxxxxxxxxxx> /

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