Program for calculating area circle.

class Circle
{
private double radius;
final private double PI=3.14;
private double area;
void accept(double r)
{
radius = r;
area = PI * radius *radius;
}
void display()
{
System.out.println("Radius of Circle : "+radius +" Units.");
System.out.println("Area of Circle : "+area +" Sq. Units.");
}
};
class Exp3_2
{
public static void main(String[] args)
{
Circle c1 = new Circle();
c1.accept(52);
c1.display();
}
}