hello i have  a set of fragment acides.mol and a set of fragments amine.mol in 
my disc  and i wont to read an acide and an amin and to create an amino acide i 
try with this code but i have an errorimport java.io.FileNotFoundException;
import java.io.InputStream;

import org.openscience.cdk.BioPolymer;
import org.openscience.cdk.exception.CDKException;
import org.openscience.cdk.io.MDLReader;
import org.openscience.cdk.tools.ProteinBuilderTool;

public class AA {
    public static void main(String[] args) throws CDKException, 
FileNotFoundException{
        String filename1 = "C:/amine/amine_59.mol";
        
        InputStream ins 
=InputStream.class.getClass().getClassLoader().getResourceAsStream(filename1);
        MDLReader reader = new MDLReader(ins);
    String filename2 = "C:/acide/acide_1.mol";
        InputStream in 
=InputStream.class.getClass().getClassLoader().getResourceAsStream(filename2);
        MDLReader read = new MDLReader(in);
        BioPolymer crambin = ProteinBuilderTool.createProtein( 
filename1+filename2 );
        System.out.println("Crambin has " + crambin.getAtomCount() +" atoms.");
}
}the error is java.lang.NullPointerExceptioni wate your answer please 
thanks
 

    Le Vendredi 29 avril 2016 17h06, John M <john.wilkinson...@gmail.com> a 
écrit :
 

 Hi Hanouna,
Sorry I didn't see your other messages, they were marked as spam due the 
writing style and yahoo.fr authentication failures.
If you're still having trouble building/using the CDK in an IDE (e.g. Eclipse) 
I put together a guide here: https://github.com/cdk/cdk/wiki/Building-CDK
I've you're new CDK you should use the least release 1.5.14. Also there are 
more relevant pages/updates on the GitHub wiki.
John 
Regards,
John W May 
john.wilkinson...@gmail.com
On 27 April 2016 at 19:39, hanouna nouna <hanounanouna...@yahoo.fr> wrote:

hello 
i have to create an amino acide from a library of fragment acide and a library 
of fragments amine if you can help me with packages of CDK that i have to use 
that will be a big pleasur to me 
and thank you so mutch




  
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