class box_area 
    {
        int w;
        int l;
        int h;
        box_area() 
        {
        w = 7;
        l = 4;
        h = 2;
        }
        void volume() 
        {
             int vol = w * h * l;
             System.out.println(vol);
        } 
    }    
   public class cons_method 
    {
        public static void main(String args[]) 
        {
            box_area obj = new box_area();
            obj.volume();
        } 
    }