Comment on Tutorial - Read from a COM port using Java program By Steven Lim



Comment Added by : PeteC

Comment Added at : 2014-02-22 18:57:14

Comment on Tutorial : Read from a COM port using Java program By Steven Lim
I am running it within NetBeans. I set a breakpoint at:
portlist=CommPortIdentifier.getPortIdentifiers():
I do F& and is shows:
public static SecurityManager getSecurityManager(){
return security
but security is null so portlist becomse null and the program ends.
Any idea how to get past this?
Thanks,


View Tutorial



Related Tutorials

Java program to get location meta data from an image

Program using concept of byte long short and int in java

Update contents of a file within a jar file

Tomcat and httpd configured in port 8080 and 80

Java File

Java String

Count number of vowels, consonants and digits in a String in Java

Reverse a number in Java

Student marks calculation program in Java

Handling Fractions in Java

Calculate gross salary in Java

Calculate average sale of the week in Java

Vector in Java - Sample Program

MultiLevel Inheritance sample in Java

Multiple Inheritance sample in Java

Archived Comments

1. How can i add text under this all images
View Tutorial          By: jana at 2013-07-09 04:32:38

2. i don't understand the input attributes can u plea
View Tutorial          By: dhanalakshmi at 2011-05-05 07:10:25

3. super excellent
View Tutorial          By: mani at 2013-05-27 05:32:06

4. Good Explanation for the collections. The output f
View Tutorial          By: kalaivanan at 2012-04-11 06:51:49

5. Good example...easy to read and understand...
View Tutorial          By: Codventure at 2009-09-11 00:07:06

6. I need to creat class. Write in class void named r
View Tutorial          By: Aliarth at 2012-11-18 00:03:15

7. do we require a gsm modem for sure ? aren't there
View Tutorial          By: sherry at 2012-07-10 11:28:58

8. I have some questions : 1) Which type of GC used
View Tutorial          By: SP at 2013-06-04 15:48:59

9. @Iqra :

You're welcome. Use sites l

View Tutorial          By: Macho Man at 2012-07-16 08:02:14

10. setListAdapter(new ArrayAdapter<String>(

View Tutorial          By: Mark at 2013-02-02 02:25:42