Write a program to demonstrate the inheritance feature of object oriented prgraming.

Create a class Circle and write methods to calculate area of a circle. Declare required fields. Write another class Cylinder which inherite the Circle class and write method to calculate volume of Cylinder useing it.

(CODE)

class Circle

{

   float radius;

   float pie;

   Circle()

   {

      this.pie=3.14f;

   }

   float area()

   {

      float ans;

      ans=this.pie*this.radius*this.radius;

      return ans;

   }

}

class Cylinder extends Circle

{

   float height;

    

   float volume()

   {

     float ans=area()*this.height;

     return ans;

   }

   

   Cylinder()

   {

     this.pie=3.14f;

   }

}

public class lab3A3

{

   public static void main(String args[])

   {

      Cylinder c= new Cylinder();

      c.radius= 4.5f;

      c.height=2.5f;

      System.out.println("Answer: "+c.volume());

   }

}