shapes

Class Shape

java.lang.Object

shapes.Shape

Direct Known Subclasses:

Circle, Rectangle

public abstract class Shape
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
Shape() Construct a generic instance of unknown shape type.
Shape(java.lang.String name) Construct a Shape whose name is specified in the argument.

Method Summary

Modifier and Type	Method and Description
abstract double	getPerimeter() Get the perimeter of this Shape, but doesn't know how to compute it, hence abstract.
java.lang.String	getShapeName() Get the name of this kind of shape.
abstract double	getSurfaceArea() Get the surface area of this Shape, but doesn't know how to compute it, hence abstract.

Methods inherited from class java.lang.Object

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

Constructor Detail

Shape

public Shape()

Construct a generic instance of unknown shape type.

Shape

public Shape(java.lang.String name)

Construct a Shape whose name is specified in the argument.

Parameters:

name - the name of this kind of shape

Method Detail

getShapeName

public java.lang.String getShapeName()

Get the name of this kind of shape.

Returns:

the name of this shape

getSurfaceArea

public abstract double getSurfaceArea()

Get the surface area of this Shape, but doesn't know how to compute it, hence abstract.

Returns:

the surface area of this Shape

getPerimeter

public abstract double getPerimeter()

Get the perimeter of this Shape, but doesn't know how to compute it, hence abstract.

Returns:

the perimeter of this Shape