Best Way to Make a Simple Java Program Configurable?

I have a java program that does some stuff involving a database. It's basically a script, but I chose to use Java because of the nice JDBC facilities. Anyway, I plan to schedule a task to have the java program executed daily, but it would be nice if I could configure it without having to recompile the program every time. By configuration, I mean remembering about 6 lines of text, such as database connection address, user-name, password, spread sheet to update, etc. Since I am storing a username and password, I should also encrypt the data. Is there some standalone Java program that is made for creating config files, which would be encrypted and have some sort of an API to access all the data stored in the config file? I am basically thinking of a savable hashtable of Strings mapping keys to values where the values can be configured by some standalone application that allows the values associated with each key to be changed, preferably through a GUI. I could make this, but I figured there may already be something that does this.

SNYP40A123 wrote:
Only thing I still need is some way to hide the password that I plan to store in it.That's a completely separate issue. There could be a lot of discussion on this but basically you can't reliably hide a password that you store somewhere no matter what you do. You can do things that will prevent the idly curious from knowing it but it's a lot harder to prevent the determined cracker from knowing it.

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J-M wrote:
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Unofficial Forum Rules and Guidelines - Hooovahh - LabVIEW Overlord
If 10 out of 10 experts in any field say something is bad, you should probably take their opinion seriously.
Attachments:
Resizable_Graph.vi ‏22 KB

Problem while executing simple java program

Hi
while trying to execute a simple java program,i am getting the following exception...
please help me in this
java program :import java.util.*;
import java.util.logging.*;
public class Jump implements Runnable{
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} The exception i am getting is
java.lang.NoClassDefFoundError: jdbc:oracle:thin:@localhost:1521:xe
Exception in thread "main" ERROR: JDWP Unable to get JNI 1.2 environment, jvm->GetEnv() return code = -2
JDWP exit error AGENT_ERROR_NO_JNI_ENV(183): [../../../src/share/back/util.c:820] Please help me.....
Thanks in advance.....sathya

I am not willing to wade through the code, but this portion makes me conjecture your using an Oracle connect string instead of a class name.
java.lang.NoClassDefFoundError: jdbc:oracle:thin:@localhost:1521:xe

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Hi ,
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Hi,
Thanks god....
I found a solution without using Jdev.....
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C:\oracle_files\Java\Examples>D:\ORACLE_UNZIPPED\JDeveloper_10.1.3.2\jdk\bin\java EmployeeTest
What does Ant has to do with this?Sorry, under the Ant tree a classpath label is found....I'm very new to Java and JDev...
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Thanks , a lot
Simon

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From the OS level, yes it is a process; from Java's perspective, it's a Thread, at least in Sun's implementation.
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http://java.sun.com/docs/books/vmspec/2nd-edition/html/Concepts.doc.html#33308

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Some general Apple Help www.apple.com/support/
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http://www.apple.com/support/macbasics/
Isolating Issues in Mac OS
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https://www.apple.com/support/osx/
https://www.apple.com/support/quickassist/
http://www.apple.com/support/mac101/help/
http://www.apple.com/support/mac101/tour/
Get Help with your Product
http://docs.info.apple.com/article.html?artnum=304725
Apple Mac App Store
https://discussions.apple.com/community/mac_app_store/using_mac_apple_store
How to Buy Mac OS X Mountain Lion/Lion
http://www.apple.com/osx/how-to-upgrade/
TimeMachine 101
https://support.apple.com/kb/HT1427
http://www.apple.com/support/timemachine
Mac OS X Community
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I liek your idea of having multiple images in a grid. I think
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right, top, and bottom for each sub-area!
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Sorry about the file mix up, I was anxious to get it posted for you that I failed to realize you were using a different version.
As far as the last "amplifier" in your Leaky Feeder design, I actually hooked it up to the 24VDC supply on the left and this was a direct connect before the first resistor. I realize this is not what would be ideal for your application as probably you have only a certain place in the Leaker Feeder to tap off from. I would suppose this would be going into a different entry way off the main entry at an intersection so I do not know how my adjusting the placing of this would effect the results because it seems to me by doing this I have bypassed a bunch resistance in the Feeder cable itself (if that is what the resistors represent) and also bypassed a number of amplification stages in the process as well.
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Message Edited by lacy on 04-28-2008 05:47 PM
Kittmaster's Component Database
http://ni.kittmaster.com
Have a Nice Day
Attachments:
Possible Constant Power Load.JPG ‏285 KB

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We purchased the downloadable version of the CS5 Production Premium installer rather than waiting 2 weeks to receive it in box form.
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Best Way to Make a Simple Java Program Configurable?

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