Calling Java from Matlab

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Kyle
Kyle on 17 Oct 2012
Edited: per isakson on 14 Mar 2018
I've seen there are a number of descriptions about this on the web, but I seem to be running into trouble. I have a simple Java function that I have compiled successfully in Java
// Java Code
//*------------------------------------
package testfunction;
public class TestFunction
{
public static void main(String[] args) {
System.out.println("Hello, World");
}
}
//*------------------------------------
and I am attempting to load and call from Matlab
%%Matlab Code
% ---------------------------------------
javaclasspath({
'C:\Users\username\Desktop\JavaFunctions\TestFunction', ...
'C:\Users\username\Desktop\JavaFunctions\TestFunction\dist\TestFunction.jar'...
});
import testfunction.*
import testfunction.TestFunction
% ----------------------------------------
I can't even get test function to import correctly, I'm sure I'm missing something I just don't know what. Any assistance is welcome

Accepted Answer

Malcolm Lidierth
Malcolm Lidierth on 20 Oct 2012
You have an instance of the Java VM running already with MATLAB so you do not need a main entry point. For hello world, just use a standard static method.
package a.b;
public class TestFunction {
private TestFunction(){
}
public static void HelloWorld() {
System.out.println("Hello, World");
}
}
In MATLAB
javaaddpath...
a.b.TestFunction.HelloWorld()
To create an instance method:
package a.b;
public class TestFunction {
public TestFunction(){
}
public void HelloWorld() {
System.out.println("Hello, World");
}
}
In MATLAB
x=a.b.TestFunction();
x.HelloWorld();
  1 Comment
Kyle
Kyle on 16 May 2013
thank you for the assistance

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More Answers (1)

Sachin Ganjare
Sachin Ganjare on 18 Oct 2012
  1 Comment
Kyle
Kyle on 16 May 2013
thanks for the links they helped with an additional issue

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