List

java.lang.Object

edu.uky.ai.io.Node

edu.uky.ai.io.List

public class List extends Node

A list is a collection of 0 to many nodes.

Author:: Stephen G. Ware

Field Summary

Fields

Modifier and Type

Field

Description

final Node

first

The first elerment in this list

final int

length

The number of elements in this list

Fields inherited from class edu.uky.ai.io.Node
next
Method Summary

Modifier and Type

Method

Description

Node

requireFirst()

Returns the first element in the list or throws an exception if no such element exists.

String

toString()

Methods inherited from class edu.uky.ai.io.Node
asList, asList, asSymbol, asSymbol, isList, isList, isSymbol, isSymbol, parse, parse, requireNext

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details
- length
  
  public final int length
  
  The number of elements in this list
- first
  
  public final Node first
  
  The first elerment in this list
Method Details
- requireFirst
  
  public Node requireFirst()
  
  Returns the first element in the list or throws an exception if no such element exists.
  
  Returns:
  
  the first element
  
  Throws:
  
  FormatException - if the list does not have a first element
- toString
  
  public String toString()
  
  Overrides:
  
  toString in class Object