I am struggling with some Max-Java basics...I am an absolute Java beginner

I would like to get two matrices into Java external and convert them into two arrays. Ideally the matrices should have different dimensions.

I know how to do that for one matrix but with two matrices I am stuck.

PS: what I need to do is to compare individual cells of two matrices

I know how to do that for one matrix but with two matrices I am stuck. 

PS: what I need to do is to compare individual cells of two matrices 

Hi there,
I am struggling with some Max-Java basics...I am an absolute Java beginner
I would like to get two matrices into Java external and

converting-two-jitter-matrices-into-two-java-arrays

I am actually already stuck at just getting two matrices inside Java. For instance this is the code from Jitter tutorial 51:

public class j51matrixinfoexample extends MaxObject {

How to modify this patch so I could input two matrices (one through inlet 1 and another through inlet 2) ?

import com.cycling74.max.*;
import com.cycling74.jitter.*;

public class j51matrixinfoexample extends MaxObject {

   public void jit_matrix(String s)
   {
     JitterMatrix jm = new JitterMatrix(s);

     outlet(0,"name", jm.getName());
   }
}

How to modify this patch so I could input two matrices (one through inlet 1 and another through inlet 2) ? 

try this (I haven't tested it but I think this is the way to do it):

public class jtwoMatrixs extends MaxObject
{    
     // just put another "DataTypes.ALL" argument in the declareInlets 
     // method for another inlet
    public jtwoMatrixs(Atom[] args)
    {
        declareInlets(new int[]{DataTypes.ALL, DataTypes.ALL}); 
        declareOutlets(new int[]{DataTypes.ALL});        
    }
    
    public void jit_matrix(String s) 
    {
        //check which inlet the matrix came in
        int inlet_num = getInlet();    
        
        //if it came in the first, call it jm0
        if (inlet_num==0)
        {
            jm0 = new JitterMatrix(s); 
        }
        
        // jm1 for second inlet
        if (inlet_num==1)
        {
             jm1 = new JitterMatrix(s);
        }
    }
    
       public void bang() //bang to see if it works
    {
        outlet(0,"names", jm0.getName( ) +", "+jm1.getName( ));
    }
 }


try this (I haven't tested it but I think this is the way to do it):
[edit--made jm0 and jm1 global]

import com.cycling74.max.*;
import com.cycling74.jitter.*;

JitterMatrix jm0;
JitterMatrix jm1;

public class jtwoMatrixs extends MaxObject
{	
 	// just put another "DataTypes.ALL" argument in the declareInlets 
 	// method for another inlet
	public jtwoMatrixs(Atom[] args)
	{
		declareInlets(new int[]{DataTypes.ALL, DataTypes.ALL}); 
		declareOutlets(new int[]{DataTypes.ALL});		
	}
	
	public void jit_matrix(String s) 
	{
		//check which inlet the matrix came in
		int inlet_num = getInlet();	
		
		//if it came in the first, call it jm0
		if (inlet_num==0)
		{
			jm0 = new JitterMatrix(s); 
		}
		
		// jm1 for second inlet
		if (inlet_num==1)
		{
			 jm1 = new JitterMatrix(s);
		}
	}
	
       public void bang() //bang to see if it works
	{
		outlet(0,"names", jm0.getName( ) +", "+jm1.getName( ));
	}
 }


Excellent answer by FLOATING POINT regarding Java program. Thank you.

Converting two Jitter matrices into two Java arrays