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Easy Learn Java: Programming Articles, Examples and Tips - Page 20


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Question: I want to download Java 1.4. I looked on the page for compatability an

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Question: I want to download Java 1.4. I looked on the page for compatability and did not find anything about Windows XP.
Has anyone installed 1.4 on XP? I want to be sure before doing this...

Answer: Yes, it seems working well. Also you can find Java plugin for Windows XP here:
http://java.sun.com/getjava/download.html


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Our older tips: March 22, 2001 - Oktober 21, 2002 read here.
All published and not published on site tips you can find here



8 comments | Printer Friendly Page  Send to a Friend | Score: 0
Posted by jalex on Thursday, February 13, 2003 (00:00:00) (4128 reads)

Question: I've been using the java comm API to allow me to build a small java in

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Question: I've been using the java comm API to allow me to build a small java interface to an old datalogger box that connects to a computer's serial port. The program runs and returns data to the interface. I have no problem receving data from the datalogger.

However, the program that runs on the datalogger needs to be reset with a "cbreak," that is, the equivalent of sending it ^C (control-C).
If I use a terminal program to send the cbreak (by typing ctrl-c), it works fine, resetting the datalogger. What I can't figure out is how to get java to send the cbreak, specifically, what do I need to write that the SerialPort's Outstream? Is it a special character? I've tried sending the string "^C" but that doesn't work.

I assume it must be some unicode thing that I am not competent enough to deal with.

Answer: No, in fact control-c has the numerical value 3. Just send a byte with a numerical value of 3.
--
Paul Lutus
www.arachnoid.com


***************************************
Our older tips: March 22, 2001 - Oktober 21, 2002 read here.
All published and not published on site tips you can find here


616 bytes more | 7 comments | Printer Friendly Page  Send to a Friend | Score: 0
Posted by jalex on Wednesday, February 12, 2003 (00:00:00) (4274 reads)

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