Accessing static members with J/Link

*To*: mathgroup at smc.vnet.net*Subject*: [mg110973] Accessing static members with J/Link*From*: John_V <jvillar.john at gmail.com>*Date*: Thu, 15 Jul 2010 03:09:53 -0400 (EDT)

I'm trying to learn how to use J/Link, and I have run into an elementary (I hope) problem when I try to access static methods and fields. For example, the Java Math class has static fields for E and PI and a number of static methods, abs() among them. Here's what happens when I try to use them: My inputs: Needs["JLink`"] InstallJava[] myMathClass = LoadJavaClass["java.lang.Math"] Fields[myMathClass] pi = myMathClass`PI myMathClass`abs[-5] /Mathematica/'s outputs: Out[2]= LinkObject[...] Out[3]= JavaClass[java.lang.Math, <> ] Out[4]//TableForm= static final double E static final double PI Out[5]= myMathClass`PI Out[6]= myMathClass`abs[-5] I believe the fact that Out[4] correctly lists java.lang.Math's static fields means LoadJavaClass worked, but I expected Out[5] = 3.1415... and Out[6] = 5. I thought this was a near verbatim transcription of the examples in the "Calling Methods and Accessing Fields" part of the J/Link user guide. What am I doing wrong? Thanks, John