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

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

Java program using Method Overriding

Archived Comments

1. Pl send some sample program for speech to text wit
View Tutorial          By: gokul at 2012-09-27 10:28:19

2. i want to SCJP exam ,tell how to apply for this ex
View Tutorial          By: PRABAKARAN at 2013-07-16 13:32:50

3. Thanks a lot.. it made my concepts of memmove,mems
View Tutorial          By: Rimmi Jain at 2009-07-23 06:42:01

4. how to trim in jsp page and to send the trimed con
View Tutorial          By: monishaa at 2015-07-16 10:06:11

5. Hi thanks for your information.

I g

View Tutorial          By: karthikeyan at 2009-09-18 04:50:37

6. I did this exactly.
In my case, the fix.php

View Tutorial          By: Manorasa at 2010-06-29 23:32:24

7. Sir , I am doing BCA . I want to know more about j
View Tutorial          By: sikandar at 2011-05-22 03:09:40

8. Good example. However as someone said, it would be
View Tutorial          By: Neo Cambell at 2010-03-10 11:02:06

9. hello it wrong in memmove nd memcpy case. I am get
View Tutorial          By: jaya at 2012-04-05 17:18:14

10. PROGRAMMING SUPERB
View Tutorial          By: vinay sharma at 2010-10-01 05:16:23