public class Circle
{
    private double m_Radius;
    private final double m_PI = 3.14159;  //  Math.PI

    // no arg constructor
    public Circle()
    {
        // set every field in object to a default value
        m_Radius = 12.3;
        System.out.println("No Arg Constructor");
    }

    public Circle(double r)
    {
        // set every field in object
        m_Radius = r;
        System.out.println("1 Arg Constructor");
    }

    // get the radius of this object
    public double getRadius()
    {
        return m_Radius;
    }

    public void setRadius(double newRadius)
    {
        m_Radius = newRadius;
    }
    public double getArea()
    {
	return m_PI * m_Radius * m_Radius;
    }
    public double getDiameter()
    {
	return 2 * m_Radius;
    }
    public double getCircumference()
    {
	double result = 2 * m_PI * m_Radius;
	return result;
    }
    public String toString()
    {
	String tmp = "My radius is " + m_Radius;
	return tmp;
    }

    public static void main(String[] args)
    {
        Circle cir = new Circle();
        System.out.println("the radius is " + cir.m_Radius);

        Circle cir2 = new Circle(43.26789);
        System.out.println("the radius is " + cir2.getRadius());
    }




}