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java.util
Class Collections.SingletonList  

java.lang.Object
  java.util.AbstractCollection
      java.util.AbstractList
          java.util.Collections.SingletonList

All Implemented Interfaces:

Collection, java.lang.Iterable, List, RandomAccess, java.io.Serializable

Enclosing class:

Collections

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private static final class Collections.SingletonList

extends AbstractList

implements java.io.Serializable, RandomAccess

The implementation of Collections.singletonList(Object) 55 . This class name is required for compatibility with Sun's JDK serializability.

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Nested Class Summary

 

Nested classes inherited from class java.util.AbstractList

 

Field Summary
private  java.lang.Object	element           The single element.
private static long	serialVersionUID           Compatible with JDK 1.4.

 

Fields inherited from class java.util.AbstractList

modCount

 

Constructor Summary
(package private)	Collections.SingletonList(java.lang.Object o)           Construct a singleton.

 

Method Summary
boolean	contains(java.lang.Object o)           The set only contains one element.
boolean	containsAll(Collection c)           This is true if the other collection only contains the element.
java.lang.Object	get(int index)           Only index 0 is valid.
int	hashCode()           Speed up the hashcode computation.
int	indexOf(java.lang.Object o)           Either the list has it or not.
int	lastIndexOf(java.lang.Object o)           Either the list has it or not.
int	size()           The size: always 1!
List	subList(int from, int to)           Sublists are limited in scope.
java.lang.Object[]	toArray()           Returning an array is simple.
java.lang.String	toString()           Obvious string.

 

Methods inherited from class java.util.AbstractList

add, add, addAll, clear, equals, iterator, listIterator, listIterator, remove, removeRange, set

 

Methods inherited from class java.util.AbstractCollection

addAll, equals, hashCode, isEmpty, remove, removeAll, removeAllInternal, retainAll, retainAllInternal, toArray

 

Methods inherited from class java.lang.Object

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

 

Methods inherited from interface java.util.List

addAll, isEmpty, remove, removeAll, retainAll, toArray

 

Field Detail

serialVersionUID

private static final long serialVersionUID

Compatible with JDK 1.4.

See Also:

Constant Field Values

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element

private final java.lang.Object element

The single element.

Constructor Detail

Collections.SingletonList

Collections.SingletonList(java.lang.Object o)

Construct a singleton.

Method Detail

size

public int size()

The size: always 1!

Specified by:

size in interface List

Specified by:

size in class AbstractCollection

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get

public java.lang.Object get(int index)

Only index 0 is valid.

Specified by:

get in interface List

Specified by:

get in class AbstractList

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contains

public boolean contains(java.lang.Object o)

The set only contains one element.

Specified by:

contains in interface List

Overrides:

contains in class AbstractCollection

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containsAll

public boolean containsAll(Collection c)

This is true if the other collection only contains the element.

Specified by:

containsAll in interface List

Overrides:

containsAll in class AbstractCollection

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hashCode

public int hashCode()

Speed up the hashcode computation.

Specified by:

hashCode in interface List

Overrides:

hashCode in class AbstractList

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indexOf

public int indexOf(java.lang.Object o)

Either the list has it or not.

Specified by:

indexOf in interface List

Overrides:

indexOf in class AbstractList

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lastIndexOf

public int lastIndexOf(java.lang.Object o)

Either the list has it or not.

Specified by:

lastIndexOf in interface List

Overrides:

lastIndexOf in class AbstractList

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subList

public List subList(int from,
                    int to)

Sublists are limited in scope.

Specified by:

subList in interface List

Overrides:

subList in class AbstractList

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toArray

public java.lang.Object[] toArray()

Returning an array is simple.

Specified by:

toArray in interface List

Overrides:

toArray in class AbstractCollection

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toString

public java.lang.String toString()

Obvious string.

Overrides:

toString in class AbstractCollection

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Home >> All >> java >> [ util overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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