import java.util.ArrayList;
import java.util.concurrent.Callable;

public class RowMultiplier 
	implements Callable<ArrayList<Double>>{

	ArrayList<ArrayList<Double>> m1,m2;
	int row;
	public RowMultiplier(ArrayList<ArrayList<Double>> m1,
			ArrayList<ArrayList<Double>> m2, int row) {
		this.m1=m1;
		this.m2=m2;
		this.row=row;
	}

	@Override
	public ArrayList<Double> call() throws Exception {
		ArrayList<Double> result= new ArrayList<>();
		int size=m1.size();
		for (int i=0;i<size;i++){
			double element=0;
			for(int j=0;j<size;j++){
				element+= m1.get(row).get(j)*m2.get(j).get(i);
			}
			result.add(element);
		}
		return result;
	}

}