public class DemoClass
{

   public DemoClass (int x, double d)
   {
   }

   public void m1 (String s)
   {
   }


   public void m2 (int x, int y)
   {
   }


   public double m3(double x, int y , double z)
   {
      return 0.0;
   }


   public String m4 (int x, String y, double z)
   {
      return ("Hello");
   }

}