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Class oplan.util.lisp.Null

java.lang.Object
   |
   +----oplan.util.lisp.LispObject
           |
           +----oplan.util.lisp.List
                   |
                   +----oplan.util.lisp.Null

public final class Null
extends List
The class of Lisp.NIL, and of nothing else.


Variable Index

 o enumeration

Constructor Index

 o Null()

Method Index

 o append(List)
 o car()
 o cdr()
 o elementAt(int)
 o elements()
 o equal(List)
 o find(Object)
 o isNull()
 o length()
 o toString()

Variables

 o enumeration
 private static NullEnumeration enumeration

Constructors

 o Null
 Null()

Methods

 o isNull
 public boolean isNull()
Overrides:
isNull in class List
 o car
 public Object car()
Overrides:
car in class List
 o cdr
 public List cdr()
Overrides:
cdr in class List
 o length
 public int length()
Overrides:
length in class List
 o elementAt
 public Object elementAt(int i)
Overrides:
elementAt in class List
 o elements
 public Enumeration elements()
Overrides:
elements in class List
 o equal
 public boolean equal(List l)
Overrides:
equal in class List
 o find
 public boolean find(Object a)
Overrides:
find in class List
 o append
 public List append(List tail)
Overrides:
append in class List
 o toString
 public String toString()
Overrides:
toString in class Object

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