001    package classwork;
002    /**
003     * Models a circle.
004     * @author Tom James
005     *
006     */
007    public class Circle {
008            /**
009             * @param radius The distance between the center of the circle and its edge.
010             */
011            public Circle(int radius)
012            {
013                    this.radius = radius;
014            }
015            /**
016             * @return The area of the circle.
017             */
018            public double getArea() {
019                    double area = radius * radius * Math.PI;
020                    //System.out.println(area);
021                    return area;
022            }
023            /**
024             * @return The circumference of the circle.
025             */
026            public double getPerimeter() {
027                    double perimeter = 2 * Math.PI * radius;
028                    return perimeter;
029            }
030            /**
031             * The distance between the center of the circle and its edge.
032             */
033            private int radius;
034    }