Error not suitable symbol found ?

Hi, I have post many questions here, and all my questions get great answers from this forum. Now I have other question again here is

I have been finish create function in MATLAB, I want the result from MATLAB implement to web, so people can know what I made and can access too. To implement it, I using Java package as compiler. I have been finish package too. but my problem is in Java language, I do not know much about Java can call funtion from MATLAB. In Java I want user can Input image the result is string.

here is my code :

import java.io.File;
import java.io.IOException;
import java.awt.image.BufferedImage;
import javax.imageio.ImageIO;
import com.mathworks.toolbox.javabuilder.*;
import semua.*;

class myImage
{
   public static void main(String[] args)
   {
      BufferedImage image = null;
      File f = null;
      Object[] result = null;
      Class1 theImage = null;

      //readimage
      try
      {
         f = new File("D:\\skripsi\\leaf\\leaf");
         image = ImageIO.read(f);
      }
      catch(IOException e){
      System.out.println("Error: "+e);
      }

      try
      {
         theImage = new Class1();
         result = theImage.semua();
         System.out.println(result[0]);
      }
      catch (IOException e)
      {
         System.out.println("Exception: " + e.toString());
      }
      finally
      {
       theImage.dispose();
      }
   }
}

But I get error in this line code :

result = theImage.semua(); //error line 30 : not suitable symbol found

How I can fix this code? If anyone here know about this, I hope I get help. Thank you any answer will be must appreciated

[Walter Roberson]

import semua.*;

I do not seem to find a Java class by that name? The closest I find is a book by Semua Bisa Menjadi, with the title Programmer Web Java - Case Study ?

[Oman Wisni]

semua is the name of my function, like name makesqr in function makesqr.

yes I used semua for name my function, cause in that function call any function..

[Walter Roberson]

Well we have no reference for the symbols or methods available in Class1 or semua.*

https://stackoverflow.com/questions/25706216/what-does-a-cannot-find-symbol-compilation-error-mean

[Oman Wisni]

does the name used affect?

[Walter Roberson]

You need to be consistent, and also avoid any keywords, and also avoid anything that you use from other packages.

[Oman Wisni]

I just follow java code from this link https://www.mathworks.com/help/compiler_sdk/gs/create-a-java-application-with-matlab-code.html I only change the name makesqr to semua, and some code where in there to create a integer but my input is image.