LineSegment (Problem Set 0: Turtle Graphics)

java.lang.Object

turtle.LineSegment

public class LineSegment
extends Object

An immutable line segment in pixel space.

PS0 instructions: do NOT change this class.

Constructor Summary

Constructors
Constructor	Description
`LineSegment(double startx, double starty, double endx, double endy, PenColor color)`	Construct a line segment from coordinate pairs.
`LineSegment(Point start, Point end, PenColor color)`	Construct a line segment from start and end points.

Method Summary

Modifier and Type	Method	Description
`PenColor`	`color()`
`Point`	`end()`
`boolean`	`equals(Object that)`
`int`	`hashCode()`
`double`	`length()`	Compute the length of this segment.
`Point`	`start()`

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- LineSegment
  
  public LineSegment(double startx, double starty, double endx, double endy, PenColor color)
  
  Construct a line segment from coordinate pairs.
  
  Parameters:
  
  startx - x-coordinate of start point
  
  starty - y-coordinate of start point
  
  endx - x-coordinate of end point
  
  endy - y-coordinate of end point
  
  color - line segment color
- LineSegment
  
  public LineSegment(Point start, Point end, PenColor color)
  
  Construct a line segment from start and end points.
  
  Parameters:
  
  start - one end of the line segment
  
  end - the other end of the line segment
  
  color - line segment color
Method Details
- start
  
  public Point start()
  
  Returns:
  
  starting point of the line segment
- end
  
  public Point end()
  
  Returns:
  
  ending point of the line segment
- color
  
  public PenColor color()
  
  Returns:
  
  color of the line segment
- length
  
  public double length()
  
  Compute the length of this segment.
  
  Returns:
  
  the length of the line segment
- equals
  
  public boolean equals(Object that)
  
  Overrides:
  
  equals in class Object
- hashCode
  
  public int hashCode()
  
  Overrides:
  
  hashCode in class Object