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Class busrider.Junction 

java.lang.Object
   |
   +----busrider.Indexed
           |
           +----busrider.Item
                   |
                   +----busrider.Junction
public class Junction
extends Item
This immutable class represents a junction. A junction has a name, and a collection of segments connecting to it. It may also have a popularity (the likelihood of being selected); if so it is a terminus.
For graphical purposes, it also has x- and y- coordinates.

Constructor Index

o Junction(MutableJunction, BoardBuilder)
constructs an object like the given MutableJunction.

Method Index

o equals(Object)
compares for name-equality.
o getPopularity()
returns the junction's popularity.
o getPX()
returns the junction's X-coordinate.
o getPY()
returns the junction's Y-coordinate.
o getSegment(int)
returns the idx'th segment connecting to the junction.
o getSegmentQuan()
returns the number of segments connecting to the junction.
o isTerminus()
indicates whether the junction is a terminus.

Constructors

o Junction 
 public Junction(MutableJunction mj,
                 BoardBuilder bb)
constructs an object like the given MutableJunction.

Methods

o equals 
 public boolean equals(Object ob)
compares for name-equality.

Overrides:
equals in class Item
o isTerminus 
 public boolean isTerminus()
indicates whether the junction is a terminus.

o getSegmentQuan 
 public int getSegmentQuan()
returns the number of segments connecting to the junction.

o getSegment 
 public Segment getSegment(int idx)
returns the idx'th segment connecting to the junction.

o getPopularity 
 public int getPopularity()
returns the junction's popularity. The Board has the total popularity.

o getPX 
 public int getPX()
returns the junction's X-coordinate.

o getPY 
 public int getPY()
returns the junction's Y-coordinate. 

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