PBO-4.1-1 Circle

/**
 * Program untuk mencari luas lingkaran
 *
 * Benito Dannes
 */

public class Circle
{
    public static final double DEFAULT_RADIUS = 8.8;
    public static final String DEFAULT_COLOR = "red";

    private double radius;
    private String color;

    public Circle()
    {
        radius = DEFAULT_RADIUS;
        color = DEFAULT_COLOR;
    }

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

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

    public double getRadius()
    {
        return radius;
    }

    public void setRadius (double radius)
    {
        this.radius = radius;
    }

    public String getColor()
    {
        return color;
    }

    public void setColor (String color)
    {
        this.color = color;
    }

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

    public double getArea()
    {
        return Math.PI * Math.pow (radius, 2);
    }

    public double getCircumference()
    {
        return Math.PI * getDiameter();
    }

    public String toString()
    {
        return "Circle with radius = " + radius + " and color is " + color;
    }
}