import java.applet.Applet;
import java.io.*;

class proj2 extends Applet{

public static void main(String args[]){

  LinkedList l1 = new LinkedList();
  l1.Add(new Integer(1));
  l1.Add(new Integer(2));
  l1.Add(new Integer(3));

  std s = new std(l1);

  try{
  		double stdev = s.value();
      System.out.println(stdev);
  }catch (DivideByZero dbz){
  		System.out.println("No values in the list");
  }
  }
}