=======================================================================================================================================
Ciecle
=======================================================================================================================================

/*
 *File name: Circle.java
 *
 *Programmer: Derek Townsend
 *ULID: djtown1
 *
 *Date: Sep 18, 2017
 *
 *Class: IT 168
 *Lecture Section: 004
 *Lecture Instructor:Dr Xing Fang
 *Lab Section: 005
 *Lab Instructor: Simran Kaur
 */

package edu.ilstu;

/*
 *<insert description>
 *
 * @author Derek
 *
 */

public class Circle
{
//  Scanner scan = new Scanner(System.in);
     private double radius;
     private final double PI;
     double area,diameter,circumference;

     public Circle(){
         PI= 3.14159;
     }
    public double calculateArea(){
        area=PI*radius*radius;
        return area;
    }
    public double calculateDiameter(){
        diameter=2*PI*radius;
        return diameter;
    }
    public double calculateCircumference(){
        circumference=2*PI*radius;
        return circumference;
    }
    public void setRadius(double radius) {
        this.radius=radius;
    }
    public double getRadius(){
        return radius;
    }


}
=======================================================================================================================================
circle driver
=======================================================================================================================================
/*
 *File name: CircleDriver.java
 *
 *Programmer: Derek Townsend
 *ULID: djtown1
 *
 *Date: Sep 18, 2017
 *
 *Class: IT 168
 *Lecture Section: 004
 *Lecture Instructor:Dr Xing Fang
 *Lab Section: 005
 *Lab Instructor: Simran Kaur
 */

package edu.ilstu;
import java.util.Scanner;


/*
 *<insert description>
 *
 * @author Derek
 *
 */

public class CircleDriver
{
    Scanner scan = new Scanner(System.in);

    public static void main(String[]args) {
    double radius=scan.nextDouble();
    System.out.print("Enter the radius of a circle:  ");

    Circle circleOne = new Circle();
//  circleOne.getRadius();
    circleOne.setRadius(radius);
    circleOne.calculateArea();
    circleOne.calculateDiameter();
    circleOne.calculateCircumference();
    System.out.println("Area =  "+circleOne.calculateArea());
    System.out.println("Area =  "+circleOne.calculateDiameter());
    System.out.println("Area =  "+circleOne.calculateCircumference());
    }
}