Class Circle

java.lang.Object
  Shape
      Circle

public class Circle
extends Shape

A Circle is a Shape that maintains information about its radius. A Circle knows how to return its radius, set its radius, calculate and return its area, and calculate and return its circumference.

Field Summary

private double

myRadius

Constructor Summary

Circle(double x)
Constructs a circle with initial radius specified by x.

Method Summary

double	findArea() Calculates and returns the circle's area.
double	findCircumference() Calculates and returns the circle's circumference.
double	getRadius() Returns the circle's radius
void	setRadius(double x) Sets the radius to the input number.

Methods inherited from class java.lang.Object

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

Field Detail

myRadius

private double myRadius

Constructor Detail

Circle

public Circle(double x)

Constructs a circle with initial radius specified by x.

Parameters:

x - initial radius

Method Detail

getRadius

public double getRadius()

Returns the circle's radius

Returns:

radius

setRadius

public void setRadius(double x)

Sets the radius to the input number.

Parameters:

x - assigns x to myRadius

findArea

public double findArea()

Calculates and returns the circle's area.

Specified by:

findArea in class Shape

Returns:

area

findCircumference

public double findCircumference()

Calculates and returns the circle's circumference.

Returns:

circumference