Solved

Java + Serial Printer

Posted on 2010-08-12
1
447 Views
Last Modified: 2013-11-23
I have no idea where to start on this one. I was handed a Java application by my boss because I answered his question with "I used it for a couple days about 5 years ago" when he asked me if I was familiar with Java.

So here's my issue: This software connects to a receipt printer via serial port and prints receipts after a transaction was completed in the software.. For some reason the software only worked with Windows XP and so I was tasked with making it work under Vista and Windows 7.

Ok, so I just compile it with the latest compiler and it should work right? Well it did, sort of. It runs under windows 7 now just fine but the receipt printer no longer works. I had the /lib/rxtxcomm.jar file included with the compiled jar so in theory it should be working but for some reason it won't see the printer anymore.

Keep in mind, I wasn't joking with my Java experience. I played with it for a week just to see what it was about five years ago and with the exception of extensive Javascript use, I have no real working knowledge of this language but as I'm the only one at the company that can spell Java, and they're too cheap to hire a consultant, I'm stuck with this. Small words and baby talk would be appreciated.

Is there anyone that can give me some starting points or should I make sure my resume is up to date and tell the boss I can't do it?
0
Comment
Question by:fredstov
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 83

Accepted Solution

by:
Dave Baldwin earned 500 total points
ID: 33426108
You may not have all the files.  Take a look at this page: http://forums.sun.com/thread.jspa?threadID=698876  And 'Java' is not 'javascript' or even actually related.  In researching your question, I didn't see much in the way of good news.  The page I have linked said that Sun decided that serial and parallel ports weren't used much under Windows anymore.
0

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

INTRODUCTION Working with files is a moderately common task in Java.  For most projects hard coding the file names, using parameters in configuration files, or using command-line arguments is sufficient.   However, when your application has vi…
In this post we will learn how to connect and configure Android Device (Smartphone etc.) with Android Studio. After that we will run a simple Hello World Program.
Viewers learn about the “for” loop and how it works in Java. By comparing it to the while loop learned before, viewers can make the transition easily. You will learn about the formatting of the for loop as we write a program that prints even numbers…
Viewers will learn about the regular for loop in Java and how to use it. Definition: Break the for loop down into 3 parts: Syntax when using for loops: Example using a for loop:
Suggested Courses

752 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question