https://drorbn.net/api.php?action=feedcontributions&feedformat=atom&user=142.150.139.33Drorbn - User contributions [en]2026-05-01T16:22:14ZUser contributionsMediaWiki 1.39.6https://drorbn.net/index.php?title=HoriAsso_-_Documentation&diff=1638HoriAsso - Documentation2006-08-04T00:59:26Z<p>142.150.139.33: /* How to set up a system for using Java in Mathematica */</p>
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<div>In this project, we will be mainly using Commands in Mathematica to access Java programs that we write. Here is how to set up the system:<br />
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[[HoriAsso|Documention|JavaDoc]] <br />
=How to set up a system for using Java in Mathematica=<br />
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==How to install ''Mathematica'','' J/Link'', and ''Java''==<br />
*Install ''Mathematica'' following the [http://documents.wolfram.com/mathematica/GettingStarted/SettingUp/InstallingMathematica.html official instructions]. <br />
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*''Jlink'' is already completely installed in ''Mathematica 4.2'' and later. If you are using earlier versions of ''Mathematica'', you can install ''JLink'' following the [http://www.wolfram.com/solutions/mathlink/jlink/Installation.html official instructions]. <br />
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*Download ''JRE 5.0 Update 6'' (latest as of June 2006) the latest version from [http://java.sun.com/j2se/1.5.0/download.js Sun] and install it following the official [http://java.sun.com/j2se/1.5.0/install.html official instructions].<br />
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==How to start using ''Jlink'' in a ''Mathematica'' notebook==<br />
*Write the Java source code (''.java'' files) and compile it using the command<br />
javac file.java<br />
Place the compiled files (''.class'' files) in the directory you want. (I have not tried to make .jar files yet so I will not write about it here)<br />
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*For detailed documentation on ''JLink'', please consult the ''Jlink'' manual in the ''Mathematica'' Help Browser. The following are extracted from there.<br />
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*Open a ''Mathematica'' notebook, install ''JLink'' by (writing and executing): <br />
Needs["JLink`"] <br />
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*Install ''Java'' by:<br />
InstallJava[] <br />
or to use a specific java runtime if you have more than one installed on your computer:<br />
InstallJava[commandLine->"/wherever/java/is"] in Linux<br />
InstallJava[CommandLine -> "d:\\\\path\\to\\java.exe"] in Windows <br />
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*Add the directory which contains the compiled java (.class) files to the class path, ie, where Java will look for class files, by <br />
AddToClassPath["wherever/my/class/files/are"] in Linux<br />
AddToClassPath["c:\\my\\java\\dir"] in Windows<br />
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*Load the Java classes by<br />
LoadJavaClass["Classname1"]<br />
LoadJavaClass["Classname2"]<br />
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*Create New Java Objects by<br />
JavaNew["classname1",constructorArg1,constructorArg2...]<br />
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*Access the non-static methods and variables of any object the same way you would in Java except replace "'''.'''" (''java'') by "'''@'''" (''Mathematica'') and "'''()'''" (''Java'') by "'''[]'''" (''Mathematica''). Access static methods or variables by replacing "'''.'''" in ''Java'' by "'''`'''" in ''Mathematica''. (I haven't used the static methods yet so I am not entirely sure.)</div>142.150.139.33