Class Rectangle

java.lang.Object

Rectangle

public class Rectangle
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
private LineSegment	ls1 A Rectangle is defined by two line segments that have a common end-point.
private LineSegment	ls2 A Rectangle is defined by two line segments that have a common end-point.

Constructor Summary

Constructors

Constructor and Description
Rectangle(LineSegment ls1, LineSegment ls2) A constructor for the Rectangle object.

Method Summary

Modifier and Type	Method and Description
double	area() Method to compute the area of 'this' Rectangle
boolean	equals(java.lang.Object obj) Method to compare 'this' Rectangle segment for equality with the 'object' specified as a parameter.
LineSegment	getLs1() Getter for LineSegment 1
LineSegment	getLs2() Getter for LineSegment 2
double	perimeter() Method to compute the perimeter of 'this' Rectangle
java.lang.String	toString() Method to render 'this' instance of the Square class into a String.

Methods inherited from class java.lang.Object

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

Field Detail

ls1

private LineSegment ls1

A Rectangle is defined by two line segments that have a common end-point. The two line segments must be perpendicular.

ls2

private LineSegment ls2

A Rectangle is defined by two line segments that have a common end-point. The two line segments must be perpendicular.

Constructor Detail

Rectangle

public Rectangle(LineSegment ls1,
                 LineSegment ls2)
          throws LineSegmentsNotPerpendicularException,
                 LineSegmentsNotAdjacentException

A constructor for the Rectangle object. This constructor accepts two LineSegments as arguments. The two LineSegments must share a common end-point and must be perpendicular to each other. A violation of any of these requirements leads to the constructor throwing an exception

Parameters:

ls1 - The first LineSegment defining the rectangle

ls2 - The second LineSegment defining the rectangle

Throws:

LineSegmentsNotPerpendicularException - This exception is thrown if the two LineSegments are not perpendicular to each other

LineSegmentsNotAdjacentException - This exception is thrown if the LineSegments do not share a common end-point.

Method Detail

area

public double area()

Method to compute the area of 'this' Rectangle

Returns:

The area of 'this' Rectangle

perimeter

public double perimeter()

Method to compute the perimeter of 'this' Rectangle

Returns:

The perimeter of 'this' Rectangle

getLs1

public LineSegment getLs1()

Getter for LineSegment 1

Returns:

The LineSegment representing LineSegment 1

getLs2

public LineSegment getLs2()

Getter for LineSegment 2

Returns:

The LineSegment representing LineSegment 2

equals

public boolean equals(java.lang.Object obj)

Method to compare 'this' Rectangle segment for equality with the 'object' specified as a parameter.

Overrides:

equals in class java.lang.Object

Parameters:

obj - An Object to be tested for equality with 'this' Rectangle

Returns:

Returns true if the specified 'object' is a Rectangle with equal LineSegments defining both Rectangles.

toString

public java.lang.String toString()

Method to render 'this' instance of the Square class into a String.

Overrides:

toString in class java.lang.Object

Returns:

Returns the String "Rectangle = " + this.ls1 + " and " + this.ls2