Practical Name: Write a java program to calculate area and volume of a cone,(use super keyword)
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class
c{
c(double R,double H){
double S = Math.sqrt(R * R + H * H);
double SurfaceArea
= (Math.PI * R * R) + (Math.PI
* R * S);
System.out.println("Surface area
of cone is : "
+ SurfaceArea);
}
}
class
v extends c{
v(double R,double H){
super(R,H);
double
volume=((22*R*R*H)/7);
System.out.println("Volume of cone
is : " + volume);
}
}
class
GFG {
public static void main(String[] args)
{
double R = 4, H = 6;
new v(R,H);
}
}
