Questions about interfacing Mathematica and Java, particularly using J/Link.

learn more… | top users | synonyms (1)

2
votes
2answers
122 views

J/Link: getArray2() returns wrong array

I want to convert a matrix from Mathematica to an int[][] in Java. I use the code below: ...
2
votes
1answer
118 views

J/Link: InstallJava[..] or ReinstallJava[..] hangs when used with a link to a remote jvm running Install.main

While I am able to use InstallJava[] (or ReinstallJava[] for that matter) with a TCP/IP link to a JVM running on the same system ...
9
votes
1answer
219 views

How secure is J/Link?

Are there security concerns with using J/Link? If so, is there any way to encrypt the data passed between Mathematica and Java? If Mathematica and the JVM are running on the same machine, is there any ...
4
votes
0answers
262 views

How to improve gesture detection by JLink for the LeapMotion controller

Building on this thread (where I cannot add anything anymore somehow) and with this nice answer I kind of got swipe detection to work, but it is not very responsive. How to improve (in the sense of ...
4
votes
2answers
230 views

J/Link: How to run a thread inside Mathematica

In the J/Link User Guide there is no example on how to use java.lang.Thread, from inside Mathematica. I'd like to know if is possible to start a thread from a ...
5
votes
0answers
152 views

How to deal with WebServices error “any is not supported in sequence”?

I am trying to aquire data through Mathematica's WebServices and this example works just fine: ...
5
votes
2answers
239 views

Automate mouse clicks with Mathematica

I need to automate mouse clicks with Mathematica. However, a similiar question was closed on this forum, without any answer. Consider the following steps: ...
6
votes
1answer
864 views

Using SimMetrics Java Function on Mathematica

I would like to know if it's possible to use/install this java library on Mathematica. This library, named SimMetrics, has a lot of string similarity functions that I would like to test. Here is the ...
2
votes
2answers
259 views

Running Mathematica via JLink from a Servlet on Tomcat 7 Problem

I'm trying to make a java servlet running on Tomcat 7 for specilized mathematical calculations. So I want to link Wolfram Mathematica 8.0 mathkernel from my servlet via JLink (webMathmatica is not an ...
10
votes
2answers
283 views

Giving JLink Huge Memory by Default

I have noticed that Mathematica makes use of Java by way of JLink, for example, in the extensions such as DatabaseLink and (I think) RLink. It also seems like Java is a first-class citizen for writing ...
4
votes
1answer
270 views

How to fix MIDI playback on OS X?

Sometimes sounds specified using SoundNote (i.e. things played using MIDI) don't play properly on OS X. Some notes are missing and some are stuck. At least this ...
3
votes
1answer
222 views

Creating event handler with ImplementJavaInterface inside a package

I am trying to make my Mathematica function to serve as an event handler for the events generated by a Java object. Specifically, I have a Java object that connects as a client to a server that ...
0
votes
2answers
4k views

KeyPress function in Java's Robot class, how to state parameter?

I am trying to use Java's Robot class to type. This is what I have done so far. Needs["JLink`"]; InstallJava[]; robot = JavaNew["java.awt.Robot"] The mouseMove ...
1
vote
0answers
71 views

Creating a Mathematica executable that uses JLink [duplicate]

I am making a program in Mathematica that uses the Robot class of Java and some other Mathematica functions. I want the end product to be a standalone executable that can run even if a computer does ...
8
votes
2answers
2k views

Dynamic graph visualisation using JLink/Java and GraphStream

Visualising the addition of new nodes and edges to a graph to 'watch it grow' is to something Mathematica is not suited to by default. However this type of animation really helps convey the emergence ...
5
votes
1answer
590 views

Error trying to open a notebook in Wolfram Workbench [duplicate]

I recently set up Mathematica 9.0.1 on a new computer, along with x64 Eclipse Indigo with JRE 1.7, and the Wolfram Workbench 2 plug-in. Something is amiss, because when I try to do any sort of task ...
12
votes
1answer
228 views

MakeJavaObject on list of inhomogeneous objects belonging to the same base class

When using J/Link, how can we create an array out of objects belonging to different classes but having the same base class? Here's an example: ...
6
votes
1answer
150 views

Using enum values with J/Link

How can I pass enum values to a function when using J/Link? What is the correct syntax for typing an enum value? For example, call normalize() using ...
1
vote
1answer
341 views

Wolfram Workbench problem with JLink

I'm working on Wolfram Workbench 2.0 and I'm creating a JLink Application project. Below there is the code: ...
2
votes
1answer
192 views

Executing C programs within mathematica [duplicate]

I have a requirement for executing a C program within Mathematica. The user will provide the inputs and the expected results on a front end. Mathematica runs the C file, obtains the result for the ...
24
votes
1answer
3k views

Programmatically retrieving e-mails from a remote server

Mathematica has a function for sending mail (SendMail) and can import the MBOX format. But what I'd like to do is ...
10
votes
2answers
489 views

How can I connect Mathematica to Clojure?

I'm using Clojure and I'd really love to be able to use some of Mathematica's functions inside it. Can anyone help with mathlinking it?
2
votes
0answers
594 views

mathematica startup time

I have Mathematica 7 and 8 installed on my laptop. Mathematica 7 starts quite fast, but Mathematica 8 is extremely slow to start. In the Option Inspector I canceled the "welcome screen" option at ...
0
votes
0answers
39 views

Problem to connect remote Mathematica Kernel using J/Link [duplicate]

Possible Duplicate: Failed to connect remote Mathematica kernel using J/Link I'm trying to connect to a remote Mathematica 8 kernel on windows server (IP :172.20.48.113 ) from a windows ...
4
votes
0answers
264 views

Why does OS X need permission to allow JLink connections each time it starts?

I understand that JLink loads each time Mathematica launches or each time a kernel starts, and that this can require permission from the firewall, if it is enabled but OS X provides settings the ...
2
votes
1answer
109 views

MathGraphicsJPanel no output

I am trying to create a Java frontend for Mathematica. Following examples from J/Link guide and looking around the API manual I came up with this code: ...
3
votes
1answer
472 views

How do I run scripts on networked computers directly from Mathematica?

The answer to an earlier question, Computers running Wolfram Lightweight Grid Manager won't fall asleep, left me with a new problem. To review, I have a computing environment comprised of: 27" ...
6
votes
1answer
682 views

Using a user defined Mathematica package with MathLink

I'm trying to create a Java program that uses some methods from a mathematica package I've defined. When I run my java program though the output of the program acts as though the Mathematica methods ...
3
votes
1answer
412 views

How do I get java to recognize import com.wolfram.jlink

I'm trying to write a java program that uses mathematica code for processing and graphs while using java for the front end. From what I've been able to glean from the j/link tutorials on the wolfram ...
7
votes
1answer
2k views

How to execute a function in the package from java?

I use Wolfram Workbench 2.0. I can get a KernelLink object and evaluate some simple expressions like "2+2". But I don't know how to export a package and execute ...
7
votes
1answer
371 views

Why does JLink lock unopened jar-files in Windows

Since the introduction of JLink (maybe a bit later) it is possible to put jar libraries inside the directory-structure of packages. If this package is installed in ...
7
votes
1answer
679 views

Efficiently deleting rows in many large text files

I have 500 text files each of about 200000 rows. I need to delete one row in each of them as fast as possible (later such operations will repeat). What is the best way to do this with Mathematica? ...
14
votes
3answers
798 views

Mathematica usage (success stories) for financial back-ends

I've been working for about 5 years in Java, developing financial back-offices (web-services, business logic, report generation etc.). I think Mathematica is very suitable for such calculations and ...
3
votes
1answer
308 views

How do you get Weisstein’s Hyphenate package to run?

I've put Eric Weisstein's Hyphenate.m package in $UserBaseDirectory/Utilities; installed the requisite ...
6
votes
2answers
412 views

Unit testing J/Link projects in Workbench

I am having some problems setting up the MUnit testing framework for a J/Link project and would be grateful for advice. I do have J/Link working when running or debugging the .nb notebook in ...
9
votes
2answers
705 views

Why is JLink loaded every time I start Mathematica?

When I start a Mathematica 8 session (either command line or with the notebook front end), I notice that there are several packages that have already been loaded for me (using ...
14
votes
2answers
343 views

Interfacing Mathematica with MINE using JLink

In last December's Science David N. Reshef, et al. proposed an interesting method to detect associations in data (Detecting Novel Associations in Large Data Sets, Science 334, 1518, 2011). Contrary to ...