18 views (last 30 days)
Susan on 30 Jun 2011
Hello everybody,
I am aware that there is a way you can use Java classes in MATLAB, would anyone know how to actually do so and how to draw a simple signal in java class and make it work with MATLAB files??.. I basically want if this idea is possible to write few java classes in JAVA and others in MATLAB for the same project, IS it possible and will be able to integrate it together to behave like one big program. I am asked to use JAVA too even though signals are better used with MATLAB so thought I should use both to have some evidence of Object Oriented Technique

Accepted Answer

Chirag Gupta
Chirag Gupta on 30 Jun 2011
I am not sure what you mean by a simple signal in Java. But here is a simple example:
--> Java Code
import java.lang.*;
public class SimpleJavaSignal
public int returnSignal()
return 56;
You compile this into SimpleJavaSignal.class.
javaaddpath('directory where the .class file resides')
a = SimpleJavaSignal(); % Creates an object of the java class
methodsview(a); % displays all the methods
a.returnSignal() % calls the Java method returnSignal

More Answers (2)

David Young
David Young on 30 Jun 2011
Yes, it's very straightforward: info here.

Mech Princess
Mech Princess on 12 Dec 2011
I tried this and I get the following error in matlab. Any idea why? thanks. ??? Undefined function or variable 'SimpleJavaSignal'.
  1 Comment
Chirag Gupta
Chirag Gupta on 14 Dec 2011
Did you compile the java program into the .class file and add the correct directory to the javaddpath?
You can check directories on the path using: javaclasspath

Sign in to comment.


Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!