Class Circle

java.lang.Object

Circle

public class Circle
extends java.lang.Object

This class models a circle

Constructor Summary

Constructors

Constructor and Description
Circle() Construct a default circle
Circle(double radius) Construct a circle with the specified radius

Method Summary

Modifier and Type	Method and Description
double	getArea() Return area
double	getRadius() Return the radius
void	setRadius(double radius) Set a new radius

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Circle

public Circle()

Construct a default circle

Circle

public Circle(double radius)

Construct a circle with the specified radius

Parameters:

radius - the radius of the circle

Method Detail

getRadius

public double getRadius()

Return the radius

Returns:

radius

setRadius

public void setRadius(double radius)

Set a new radius

Parameters:

radius - a new radius

Throws:

java.lang.IllegalArgumentException - if the radius is negative

getArea

public double getArea()

Return area

Returns:

the area of the circle