external library

Hi all,
 I want to run this code in java ( link below). However, i don't know how to include JMathTools as external library in order to run it. PLease help me step by step because i am new in java.. Thanks for your patient.


http://www.codecodex.com/wiki/index.php?title=Perform_simple_mathematical_operations_on_two_matrices
valleytechAsked:
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objectsCommented:
if you are just using text pad then add its location to the CLASSPATH environment variable
or easier just copy it to the ext director of your JRE and JDK

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objectsCommented:
download jar from here

http://downloads.sourceforge.net/jmathtools/jmatharray.jar

and add it to your classpath/build path

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valleytechAuthor Commented:
please show me how to add it to classpath/build path. Thanks.
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objectsCommented:
are you using an IDE?

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valleytechAuthor Commented:
i just use textpad. Thanks.

PS: what if i use netbean. Thanks.
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