Create a Java Application with MATLAB Code in Android studio java

i followed the instructions in this link in order to convert a matlab function and use it in java https://www.mathworks.com/help/compiler_sdk/gs/create-a-java-application-with-matlab-code.html

it works in NetBeans IDE but when i repeat the same steps in Android studio java this error massage appeared

    Exception in thread "main" java.lang.ClassNotFoundException: com.example.asus.testttt.MakesqrClass
  at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
  at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
  at java.lang.Class.forName0(Native Method)
  at java.lang.Class.forName(Class.java:264)
  at com.intellij.rt.execution.application.AppMain.main(AppMain.java:123)

Answer 1

[Walter Roberson]

The java code created with MATLAB Compiler SDK can only be used on the same operating system that it was compiled on.

In general, the output of MATLAB Compiler SDK can only ever run on the same operating systems that MATLAB itself can run on.

MATLAB Compiler SDK does not convert all of the MATLAB code to Java.

Instead, it uses the same technology as MATLAB Compiler in order to translate the MATLAB code into threaded interpreted code -- interpreted code that needs MCR (MATLAB Component Runtime) to execute. Then MATLAB Compiler SDK wraps the calls into MCR into some JNI (Java Native Interface) code and builds a .jar from that.

The invoking Java program calls into the .jar, which uses the JNI to execute operating-system-specific machine-code MCR, and MCR interprets the threaded interpreted code.

MATLAB itself runs MATLAB programs by translating them into threaded interpreted code that is then interpreted using operating-system dependent libraries. The single biggest difference between MATLAB interactive execution and how compiled MATLAB programs work is that compiled MATLAB programs do not have access to the command line interpreter; otherwise the execution path is nearly identical. (This is the main reason why programs produced by MATLAB Compiler and MATLAB Compiler SDK work at nearly the same speed as the interactive MATLAB, because they execute the same way.)

The consequence of all of this is that programs produced by MATLAB Compiler or MATLAB Compiler SDK can only potentially execute on systems that MCR has been built for -- which is to say MS Windows, OS-X, or (general purpose) Linux. There is no MCR for Android.

[amjad sefri]

So what about Matlab coder if i use it to run the matlab function in android studio?

[amjad sefri]

Or there is another way to run my function in android studio java?

[Walter Roberson]

MATLAB Coder is able to compile a subset of MATLAB into C or C++. That subset is missing most of the graphics, which might or might not be important to you.

The most complete ability to use MATLAB with Android is to create a Simulink model and use Android specific blocks.