/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
import java.lang.reflect.*;
 
/* Name of the class has to be "Main" only if the class is public. */
interface BaseRepository{
   public void commitData();
   public Object retrieveData();
   public Object sortByLength();
}
 
interface FileRepository extends BaseRepository{
    public void commitData();
    public List fileNames();
}
 
interface ObjectRepository extends FileRepository, BaseRepository {}
 
 
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		for(Method method : ObjectRepository.class.getMethods()){
            System.out.println(method.getDeclaringClass() + " " + method.getName());
        }
	}
}

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