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Call Java program from an Excel macro

Posted on 2004-09-06
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Last Modified: 2008-08-09
I need to write a macro to be executed from an excel spreadsheet. It needs to call a java program that will perform certain functions with the data.  

Does anyone know what i need to do to achieve this ?
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Question by:papillon2
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Discofish earned 100 total points
ID: 11991776
Try passing names/parameters to the program via the command line. I believe it the args array in Java.  You can also turn the program into an exce http://www.duckware.com/jexepack/.  Then, just capture the output. http://www.experts-exchange.com/Programming/Programming_Languages/Visual_Basic/Q_20193718.html 

Or if it is a JavaBean, you can try this:
http://java.sun.com/j2se/1.4.2/docs/guide/beans/axbridge/developerguide/index.html#supported


Otherwise, You'd need to create a DLL that uses the Java Native Interface and call it from VB.
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Assisted Solution

by:darrylmg
darrylmg earned 100 total points
ID: 11994460
Instead of trying to write a complex interface, can you not try something a little "classy 'er".

What about this:

1, The excel macro copies the required data from the current workbook into a new workbook (I am assuming you are a competant macro writer).
2, The new workbook is then saved as a CSV (comma seperated variable) file to a specific name in the c:\temp directory.
3, The macro then calls the Java program and passes it the name of the CSV file in the c:\temp directory.
4, The Java program reads in the data from the CSV file and does it's stuff.

I am also assuming:
1, The Java program is configurable/editable by you.
2, The type of data required by the java program is text based.

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