System date as Command line argument

Hi
Can we pass system date as commandline argument to a java program.
If yes,How?
thnx in advance

A simple work-around:
public class Test {
     public static void main(String[] argv) {
          if (argv.length != 0) {
               if (argv[0].equalsIgnoreCase("date")) argv[0] = new java.util.Date().toString();
               System.out.println(argv[0]);
}

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Charset encoding of command-line arguments

I have a java application which accepts a string from command line arguments like this
java myapp <arguments>What will be the charset encoding of the arguments? It may contain some foreign characters.
The default charset encoding of my JVM?? is windows-31j.
System.out.println(Charset.defaultCharset().name());
// output: windows-31jI need to convert the arguments into bytes array but i don't know what charset to specify in arguments.getBytes()?
Please help.

Kyowa wrote:
I need to convert the arguments into bytes array but i don't know what charset to specify in arguments.getBytes()?
Please help.The arguments are presented as String data, which should always be in UNICODE, regardless of the encoding used by the platform. There could be problems with conflict between the command line shell and the JVM with non-Latin characters, which would be a matter of configuration, but the string you get should be UNICODE.
When you chose to convert a UNICODE string to a byte array or stream then you use whatever encoding you want the bytes to be in. In the Java model, it's characters stored as bytes which are encoded in various ways. The encoding encodes to and from the UNICODE characters used in Strings.

Error while running aiaconfig.sh - The command line argument(s) "weblogicConfig"

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Thanks a lot,
RR.

try checking relevant environment variables like the CLASSPATH.... a major source of failures in Windows is when in the classpath there is a path containing SPACES.... also enabling some "debug" or "verbose" flag (not sure how to do it) would provide more insight...

How to run command line argument programe

Hi guys, I am doing pass command line argument programe in java but I don't know how to run this programe. Path for this programe in my my computer is C:\Users\Desktop\Mainjava\mycode\CommandProgjava*
{code/}
public class CommandProg
public static void main(String[] args)
System.out.println("d");
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Edited by: JayVirk on Dec 30, 2007 11:33 AM

Jay,
Your question isn't very clear, hence Joerg's well meaning but irrelevant advise.
Do you mean:
I've written a simple program in java which echos
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Here's my code:
package forums;
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I'm using winblows shista, and it's cr@p.
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Start here: http://java.sun.com/developer/onlineTraining/new2java/

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arg3
arg4
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Read in file name + path using command line arguments

Hi guys,
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In other words, It works if I type:
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You need to learn about cmd.exe which is used to process the command line. The arguments passed to any program is the command line split at white space so your command line arguments of
c:\Documents and Settings\user\desktop\file1.xml c:\Documents and Settings\user\desktop\file2.xmlis turned into an array of
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To get round this the file names need to be quoted
java cmdLineArgs "c:\Documents and Settings\user\desktop\file1.xml" "c:\Documents and Settings\user\desktop\file2.xml"

Executing another program with command line arguments

I am very new to Java, so bare with me.
I have written an encryption/decryption program in C (that accepts command line arguments of the key, mode (encrypt/decrypt), and file), and I have written a GUI for it in Java. It accepts the filename (and has a button which opens the "File/Open" dialog), key, and mode, and has a button to Start the process of the encryption. I'd like for that "Start" button to call my encryption program in C (eep.exe) with the command line arguments of the file, key, and mode. This is what I have written so far :
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Thanks in advance.

That has helped greatly, but I cannot pass command line arguments to it.
Using :
try {
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I have also tried loading the program, as well as some command line arguments into an array of strings :
String[] cmdArray = {"C:\\eep.exe", filename};
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ERROR: -1639 INVALID COMMAND LINE ARGUMENT

Trying to install software for Shuffle that Santa brought and get this error messsage...
"Error: -1639 invalid command line argument. Consult the windows Installer SDK for detailed command line help."
Install stops at this point.
SOMEONE HELP... My kid is chomping at the bit !
Thanks.

Ok I'll do some more searching but I found something in the community forums.
APPSearch can not return this data into a property, so instead, for some unspeakable reason, returns a value of Null, follwed by another Null. This means that the property is created, and populated with two null characters. Bad news if the property also happens to be a PUBLIC property. All public properties are passed as part of the command line sent in a stream to the background installer process by the Execute Action. Since this stream now contains a double null value in a property, the stream is prematurely terminated. This creates an invalid command line, and thus the 1639 error.
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Reading character * at command line argument?

import java.util.regex.Matcher;
import java.util.regex.Pattern;
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public static void main(String[] args) {
Matcher m =
Pattern.compile("[aeiouAEIOU]*(\*)[atcgAGCT]*").matcher(
"agctaEvening is full of the linnet's wings");
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System.out.println(m.group());
Help?
(\*) - How can I read the * symbol from command line argument?

If anyone can advise me, I would be very grateful.
I have a program that takes arguments from command line:
one a text file and the other a sequence to search against the file.
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if (parameter.matches("[aeiouAEIOU]*") != true){
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Pass dynamic Command line arguments

Hi,
I tried to pass dynamic command line argument to Web start using the method :
"javaws URL -D foo -D bar"
as explained in the "Unofficial JWS/JNLP FAQ" that " You can pass your own system properties to your app using -D switch ....", but I got the following error at the start;
error occurred while launching/running the application.
Category: Invalid Argument error
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Thanks in advance for your help.

Thanks.
here below is the jnlp file:
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<offline-allowed />
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<jar href="lib/gui.jar" />
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<jar href="lib/jdom.jar" />
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<jar href="lib/orion.jar" />
<jar href="lib/sunjce_provider.jar" />
<jar href="lib/US_export_policy.jar" />
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<security>
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Documenting command line arguments

I'm very new to javadoc, and I'm trying to put together a set of guidelines for our developers to follow. One thing I came accross was command line arguments. If a main function is expecting command line arguments, how would this be documented, should @param be used? I didn't see anything about this in the guidelines sun has posted. Any help is greatly appreciated.

This is my own personal opinion, so don't treat it as a "fact", but I don't think Javadoc is best suited for specifying command line arguments. You could do the following:
* Description of main() here...
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BUT...
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If parameters are optional, instead of mandatory, you could do something similar...
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Hi
iam running one program called report.java as given below
compile:
javac report.java
run:
java report -Djava.path=home/arao/jaava1.5/bin
my problem is how to read name and value pair given in command line argument.
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pair of -D option

If you put that string after the name of the class you are running, then it's a command line parameter. Your main() method can look at args[0] to see it. However it would be better if you just put it before the name of the class, where it's supposed to go if you want it to be treated as a system property.

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Hey there,
I have a program that uses a command line argument at runtime to get a txt file which is then loaded into my program.
c:\>java FileName infile.txt
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Thanks
Dave

Yeah I didn't realise I could use args[] like a string
(first time using args you see....)
but in my print statement I put ("Reading " ++
args[0]) ionstead of
("Reading " + args[0])
amazing the smallest thing the greatest stress :)You're not using "args" like a string
this code:
class EchoArgs{
public static void main(String[] args)
//args is a String array.
for(int j=0; j<args.length;j++)
System.out.println("args["+j+"] is:"+args[j]);
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(arg[0] is the first string of the string array, etc..)
Good ,luck,
Dave

System date as Command line argument

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