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jeroen
Guest
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 Posted: Sat Feb 21, 2004 11:04 pm Post subject: problem using seial port |
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Hi,
For a project at school I need to read data from port COM2. I used som
examples from internet and created a project on it. Running the app it
looks like there is no COM port available.
This statment retuns null
System.out.println((CommPortIdentifier)portList.nextElement()); Tried
everything but something is missing.
selection of the code:
============================================
package talk2com;
import javax.comm.*;
import java.io.*;
import java.util.Enumeration;
public class Talk2Com {
//Construct the application
public Talk2Com(){
}
public static void main(String[] args) throws NoSuchPortException {
Enumeration portList = CommPortIdentifier.getPortIdentifiers();
System.out.println((CommPortIdentifier)portList.nextElement());
}
===================================================================
Thanks Jeroen
[email]jeroen.k (AT) gmx (DOT) net[/email]
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William Brogden
Guest
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| Posted: Sun Feb 22, 2004 4:02 pm Post subject: Re: problem using seial port |
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"jeroen" <jeroen (AT) nospam (DOT) com> wrote
| Quote: | Hi,
For a project at school I need to read data from port COM2. I used som
examples from internet and created a project on it. Running the app it
looks like there is no COM port available.
This statment retuns null
System.out.println((CommPortIdentifier)portList.nextElement()); Tried
everything but something is missing.
|
The usual reason for this is that you don't have the javax.comm.properties
file
in the right place. Try putting it in JAVA_HOMEjrelib
| Quote: |
selection of the code:
============================================
package talk2com;
import javax.comm.*;
import java.io.*;
import java.util.Enumeration;
public class Talk2Com {
//Construct the application
public Talk2Com(){
}
public static void main(String[] args) throws NoSuchPortException {
Enumeration portList = CommPortIdentifier.getPortIdentifiers();
System.out.println((CommPortIdentifier)portList.nextElement());
}
===================================================================
Thanks Jeroen
[email]jeroen.k (AT) gmx (DOT) net[/email]
|
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jeroen
Guest
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| Posted: Sun Feb 22, 2004 8:19 pm Post subject: Re: problem using seial port |
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William,
thanks for your support I placed tha file javax.comm.properties and
win32com.dll in the JBuilder ..lib iso the ..jdk.. dir. Followed your
advice and everything works fine. :-)
greetings Jeroen
William Brogden wrote:
| Quote: | "jeroen" <jeroen (AT) nospam (DOT) com> wrote in message
news:103fp0hmv7q5ff5 (AT) corp (DOT) supernews.com...
Hi,
For a project at school I need to read data from port COM2. I used som
examples from internet and created a project on it. Running the app it
looks like there is no COM port available.
This statment retuns null
System.out.println((CommPortIdentifier)portList.nextElement()); Tried
everything but something is missing.
The usual reason for this is that you don't have the javax.comm.properties
file
in the right place. Try putting it in JAVA_HOMEjrelib
selection of the code:
============================================
package talk2com;
import javax.comm.*;
import java.io.*;
import java.util.Enumeration;
public class Talk2Com {
//Construct the application
public Talk2Com(){
}
public static void main(String[] args) throws NoSuchPortException {
Enumeration portList = CommPortIdentifier.getPortIdentifiers();
System.out.println((CommPortIdentifier)portList.nextElement());
}
===================================================================
Thanks Jeroen
[email]jeroen.k (AT) gmx (DOT) net[/email]
----== Posted via Newsfeed.Com - Unlimited-Uncensored-Secure Usenet News==----
http://www.newsfeed.com The #1 Newsgroup Service in the World! >100,000 Newsgroups
---= 19 East/West-Coast Specialized Servers - Total Privacy via Encryption =---
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