Conversion script: link fix

2015-02-26T23:48:56Z

link fix

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* Java source code files should have the same name as the public class they contain. So if you've copied the <nowiki>"TestMe"</nowiki> class from [[UniObjectsTest]] and pasted it into an editor, you should save it as <nowiki>TestMe.java</nowiki>

* Make the necessary changes in <nowiki>TestMe.java</nowiki> to point it at *your* database host with a good userID and password.

* To compile <nowiki>TestMe.java</nowiki>, you will need to have asjava.zip in your CLASSPATH. The CLASSPATH is how the JVM "finds" the classes it needs to run.

* asjava.zip comes with any recent U2 distribution, and is usually found in /usr/unishared/uojsdk after installation. On Windows (UD 6.1 PE) it can be found in C:\IBM\[[UniDK]]\uojsdk\lib.

* Put yourself in the same directory as <nowiki>TestMe.java</nowiki>, and try this:

javac -classpath /path/to/asjava.zip <nowiki>TestMe.java</nowiki>

* If you're using Windows, change all the '/' to '\' and use ; (semicolon) to separate elements of the classpath rather than : (colon)

* If you just come back to a command prompt, that's good! List the contents of the directory and you should see not only <nowiki>TestMe.java</nowiki>, but now also a <nowiki>TestMe.class</nowiki> file.

* To run the program, you'll need that same classpath AND IN ADDITION, the current directory, since that's where your new <nowiki>TestMe.class</nowiki> file lives:

java -classpath /path/to/asjava.zip:. <nowiki>TestMe</nowiki>

* Note the extra "dot" in the classpath and the LACK of an extension on <nowiki>TestMe</nowiki>. The "dot" means "this directory" and will let the JVM find your newly created <nowiki>TestMe</nowiki>.class file in order to execute it.

* Did you get an error that says, 'Exception in thread "main" java.lang.<nowiki>NoClassDefFoundError</nowiki>: /path/to/<nowiki>TestMe</nowiki>'? If so... YOU HAVE TO ADD A "DOT" TO YOUR CLASSPATH! This is not optional!!

* If you are having trouble understanding the Java classpath, this link may help: http://mindprod.com/jgloss/classpath.html

* Please add to and/or correct these instructions if I've left something out or said something incorrectly.

TestMeInstructions - Revision history

Conversion script: link fix