Args error in main method for client-server program

Posted by socket on Stack Overflow See other posts from Stack Overflow or by socket
Published on 2010-05-06T22:00:54Z Indexed on 2010/05/06 22:08 UTC
Read the original article Hit count: 176

Filed under:

java

|

args

|

socket

|

error

Hi I have a client and server program, all the coding is done and compiles, the client has a GUI and the server is command line. The program uses sockets.

But when I run the client to connect to the server it keeps coming with the error message: "Usage: TodoClient []", rather than connecting to the server and starting up.

This is where the problem lies:

 public static void main(String[] args) {

TodoClient client;



if (args.length > 2 || args.length == 0) {

  System.err.println("Usage: TodoClient <host> [<port>]");

} else if (args.length == 1) {

  client = new TodoClient(args[0], DEFAULT_PORT);

} else {

  client = new TodoClient(args[0], Integer.parseInt(args[1]));

}

}

Thank You

© Stack Overflow or respective owner

Related posts about java

Tomcat 6: Access Control Exception?

as seen on Server Fault - Search for 'Server Fault'
I'm trying to setup a tomcat6 server, and I'm trying to match another setup someone else established. However, my deployment (default Ubuntu install) uses a policy.d/ directory structure, and the established server just uses a catalina.policy file. I've tried setting every entry in policy.d to match… >>> More
Problem in creation MDB Queue connection at Jboss StartUp

as seen on Stack Overflow - Search for 'Stack Overflow'
I am not able to create a Queue connection in JBOSS4.2.3GA Version & Java1.5, as I am using MDB as per the below details. I am putting this MDB in a jar file(named utsJar.jar) and copied it in deploy folder of JBOSS, In the test env. this MDB works well but in another env. [ env settings and… >>> More
failing to establish connection between Postgres db and gwt

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I am using Postgres and gwt 2.0 for one of my applications. I am facing problem connecting to the database. When I try to connect it gives "ClassNotFoundException". Here is what I get when I try to connect to database: java.lang.ClassNotFoundException: org.postgresql.Driver at java.net… >>> More
failing to establish connection between postgre db and gwt

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, For i am using postgre and gwt 2.0 for one of my applications. I am facing problem connecting to the database. When i try to connect it gives "ClassNotFoundException". Here is what i get when i try to connect to database: java.lang.ClassNotFoundException: org.postgresql.Driver at java.net… >>> More
Migration and deployement problems JBoss 4.2.2.GA to JBoss 6.0.0.M2

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I'm trying to migrate an application running on JBoss 4.2.2.GA to JBoss 6.0.0.M2 I give you some log to explain my problem : boot.log : 2010-03-16 09:59:29,406 ERROR [org.jboss.system.server.profileservice.ProfileServiceBootstrap] (Thread-2) Failed to load profile: Summary of incomplete deployments… >>> More

Related posts about args

Observing flow control idle time in TCP

as seen on Oracle Blogs - Search for 'Oracle Blogs'
Previously I described how to observe congestion control strategies during transmission, and here I talked about TCP's sliding window approach for handling flow control on the receive side. A neat trick would now be to put the pieces together and ask the following question - how often is TCP transmission… >>> More
subprocess.Popen doesn't work when args is sequence

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm having a problem with subprocess.Popen when args parameter is given as sequence. For example: import subprocess maildir = "/home/support/Maildir" This works (it prints the correct size of /home/support/Maildir dir): size = subprocess.Popen(["du -s -b " + maildir], shell=True, … >>> More
called function A(args) calls a function B() which then calls a function A(args), How to do that?

as seen on Stack Overflow - Search for 'Stack Overflow'
See example: <!DOCTYPE html> <html> <head> <title>language</title> <script type="text/javascript" src="http://www.google.com/jsapi"> </script> </head> <body> <div id="language"></div> … >>> More
Python: override __init__ args in __new__

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a __new__ method as follows: class MyClass(object): def __new__(cls, *args): new_args = [] args.sort() prev = args.pop(0) while args: next = args.pop(0) if prev.compare(next): prev = prev.combine(next) else: new_args… >>> More
Convert args to flat list?

as seen on Stack Overflow - Search for 'Stack Overflow'
I know this is very similar to a few other questions, but I can't quite get this function to work correctly. def flatten(*args): return list(item for iterable in args for item in iterable) The output I'm looking for is: flatten(1) -> [1] flatten(1,[2]) -> [1, 2] flatten([1,[2]]) ->… >>> More