SINGLE INHERITANCE

In this type ,there is only one superclass and one subclass.
Single Inheritance Program To Find The Volume Of A cylinder and a sphere
/* Program To Implement Simple Program On Single Inheritance */
class Sphere
{
double r;
double area()
{
return (r * r * r * 4 * 3.1416 / 3);
}
}
class Cylinder extends Sphere
{
double h;double area()
{
return 3.1416 * r * r * h;
}
}
class Volume
{
public static void main(String args[])
{
Cylinder C = new Cylinder();
C.r = 2.0;C.h = 6.0;
double cyl = C.area();
Sphere S = new Sphere();
S.r = 5.0;
double sph = S.area();
System.out.println("Area of sphere is "+sph+" and area of cylinder is "+cyl);
}
}
/* OUTPUT *
Area of sphere is 523.6
and
area of cylinder is 75.3984 */