package Chapter10;

public class Circle extends GeometricObject {
 private double radius;

 public Circle() {
 }

 public Circle(double radius) {
 this.radius = radius;
 }

 /** Return radius */
 public double getRadius() {
 return radius;
 }

 /** Set a new radius */
 public void setRadius(double radius) {
 this.radius = radius;
 }

 /** Return area */
 public double getArea() {
 return radius * radius * Math.PI;
 }

 /** Return diameter */
 public double getDiameter() {
 return 2 * radius;
 }

 /** Return perimeter */
 public double getPerimeter() {
 return 2 * radius * Math.PI;
 }

 /** Print the circle info */
 public void printCircle() {
 System.out.println("The circle is created " + getDateCreated() +
 " and the radius is " + radius);
 }
}