import java.awt.Graphics2D;
import java.awt.Color;
import java.awt.geom.Ellipse2D;
//Circle.java

public class Circle
{
        //Circle's radius
        private double radius();
        
        //instance variables of the circle's center
        public double x,y;
        Color blue = g2.fill(circle);
        
        //constructor
        public Circle( double radiusValue )
        {
            setRadius( radiusValue );
        }
        
        //set radius
        public void setRadius( double radidusValue )
        {
            radius = radius;
        }
        
        //return radius
        public double getRadius()
        {
            return radius;
        }
        
        //calculate and return circumference
        public double getCircumference()
        {
            return Math.PI * getRadius() * 2;
        }
        
        //calculate and return circle's area
        public double getArea()
        {
            return Math.PI * getRadius() * getRadius();
        }
        
} //end class Circle    

public class Circle
{
        //Circle's radius
        private double radius();                  << looks like a function call remove the () ??
        
        //instance variables of the circle's center
        public double x,y;
        Color blue = g2.fill(circle);             << executable statement outside a method