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//program to inherit a class boxcolour from class from box example 2

class boxone
{
    double width;
    double height;
    double depth;
    boxone(box ob)
    {
        width=ob.width;
        height=ob.height;
        depth=ob.depth;
    }
    boxone(double w,double h,double d)
    {
        width=w;
        height=h;
        depth=d;
    }
    boxone()
    {
        width=-1;
        height=-1;
        depth=-1;
    }
    boxone(double len)
    {
        width=height=depth=len;
    }
    double volume()
    {
        return width*height*depth;
    }
}
class boxcolour extends boxone
{
    String colour;
    boxcolour(double w,double h,double d,String c)
    {
        width=w;
        height=h;
        depth=d;
        colour=c;
              
    } 
}

public class boxinheritancecolour {
        public static void main(String[] args) {
        boxcolour box1=new boxcolour(10,20,15,"red");
        boxcolour box2=new boxcolour(2,3,4,"green");
        double vol;
        vol=box1.volume();
        System.out.println("Volume of box1 is " + vol);
        System.out.println("Weight of box1 is " + box1.colour);
        
        vol=box2.volume();
        System.out.println("Volume of box2 is " + vol);
        System.out.println("Weight of box2 is " + box2.colour);
}
}