Java Doc for Collection.java in  » Apache-Harmony-Java-SE » java-package » java » util » Java Source Code / Java DocumentationJava Source Code and Java Documentation

Java Source Code / Java Documentation
1. 6.0 JDK Core
2. 6.0 JDK Modules
3. 6.0 JDK Modules com.sun
4. 6.0 JDK Modules com.sun.java
5. 6.0 JDK Modules sun
6. 6.0 JDK Platform
7. Ajax
8. Apache Harmony Java SE
9. Aspect oriented
10. Authentication Authorization
11. Blogger System
12. Build
13. Byte Code
14. Cache
15. Chart
16. Chat
17. Code Analyzer
18. Collaboration
19. Content Management System
20. Database Client
21. Database DBMS
22. Database JDBC Connection Pool
23. Database ORM
24. Development
25. EJB Server geronimo
26. EJB Server GlassFish
27. EJB Server JBoss 4.2.1
28. EJB Server resin 3.1.5
29. ERP CRM Financial
30. ESB
31. Forum
32. GIS
33. Graphic Library
34. Groupware
35. HTML Parser
36. IDE
37. IDE Eclipse
38. IDE Netbeans
39. Installer
40. Internationalization Localization
41. Inversion of Control
42. Issue Tracking
43. J2EE
44. JBoss
45. JMS
46. JMX
47. Library
48. Mail Clients
49. Net
50. Parser
51. PDF
52. Portal
53. Profiler
54. Project Management
55. Report
56. RSS RDF
57. Rule Engine
58. Science
59. Scripting
60. Search Engine
61. Security
62. Sevlet Container
63. Source Control
64. Swing Library
65. Template Engine
66. Test Coverage
67. Testing
68. UML
69. Web Crawler
70. Web Framework
71. Web Mail
72. Web Server
73. Web Services
74. Web Services apache cxf 2.0.1
75. Web Services AXIS2
76. Wiki Engine
77. Workflow Engines
78. XML
79. XML UI
Java
Java Tutorial
Java Open Source
Jar File Download
Java Articles
Java Products
Java by API
Photoshop Tutorials
Maya Tutorials
Flash Tutorials
3ds-Max Tutorials
Illustrator Tutorials
GIMP Tutorials
C# / C Sharp
C# / CSharp Tutorial
C# / CSharp Open Source
ASP.Net
ASP.NET Tutorial
JavaScript DHTML
JavaScript Tutorial
JavaScript Reference
HTML / CSS
HTML CSS Reference
C / ANSI-C
C Tutorial
C++
C++ Tutorial
Ruby
PHP
Python
Python Tutorial
Python Open Source
SQL Server / T-SQL
SQL Server / T-SQL Tutorial
Oracle PL / SQL
Oracle PL/SQL Tutorial
PostgreSQL
SQL / MySQL
MySQL Tutorial
VB.Net
VB.Net Tutorial
Flash / Flex / ActionScript
VBA / Excel / Access / Word
XML
XML Tutorial
Microsoft Office PowerPoint 2007 Tutorial
Microsoft Office Excel 2007 Tutorial
Microsoft Office Word 2007 Tutorial
Java Source Code / Java Documentation » Apache Harmony Java SE » java package » java.util 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.util.Collection

Collection
public interface Collection extends Iterable<E>(Code)
Collection is the root of the collection hierarchy.




Method Summary
public  booleanadd(E object)
     Attempts to add object to the contents of this Collection.
public  booleanaddAll(Collection<? extends E> collection)
     Attempts to add all of the objects contained in collection to the contents of this collection.
public  voidclear()
     Removes all elements from this Collection, leaving it empty.
public  booleancontains(Object object)
     Searches this Collection for the specified object.
public  booleancontainsAll(Collection collection)
     Searches this Collection for all objects in the specified Collection.
public  booleanequals(Object object)
     Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison.
Parameters:
  object - Object the object to compare with this object.
public  inthashCode()
     Answers an integer hash code for the receiver.
public  booleanisEmpty()
     Answers if this Collection has no elements, a size of zero.
public  Iterator<E>iterator()
     Returns an instance of Iterator that may be used to access the objects contained by this collection.
public  booleanremove(Object object)
     Removes the first occurrence of the specified object from this Collection.
public  booleanremoveAll(Collection collection)
     Removes all occurrences in this Collection of each object in the specified Collection.
public  booleanretainAll(Collection collection)
     Removes all objects from this Collection that are not also found in the contents of collection.
public  intsize()
     Returns a count of how many objects are contained by this collection.
public  Object[]toArray()
     Answers a new array containing all elements contained in this Collection.
public  T[]toArray(T[] array)
     Answers an array containing all elements contained in this Collection.



Method Detail
add
public boolean add(E object)(Code)
Attempts to add object to the contents of this Collection.
Parameters:
  object - the object to add true if this Collection ismodified, false otherwise
exception:
  UnsupportedOperationException - when adding to this Collection is not supported
exception:
  ClassCastException - when the class of the object is inappropriate for thisCollection
exception:
  IllegalArgumentException - when the object cannot be added to this Collection



addAll
public boolean addAll(Collection<? extends E> collection)(Code)
Attempts to add all of the objects contained in collection to the contents of this collection.
Parameters:
  collection - the Collection of objects true if this Collection is modified, false otherwise
exception:
  UnsupportedOperationException - when adding to this Collection is not supported
exception:
  ClassCastException - when the class of an object is inappropriate for thisCollection
exception:
  IllegalArgumentException - when an object cannot be added to this Collection



clear
public void clear()(Code)
Removes all elements from this Collection, leaving it empty.
exception:
  UnsupportedOperationException - when removing from this Collection is not supported
See Also:   Collection.isEmpty
See Also:   Collection.size



contains
public boolean contains(Object object)(Code)
Searches this Collection for the specified object.
Parameters:
  object - the object to search for true if object is an element of this Collection, false otherwise



containsAll
public boolean containsAll(Collection collection)(Code)
Searches this Collection for all objects in the specified Collection.
Parameters:
  collection - the Collection of objects true if all objects in the specified Collection are elements ofthis Collection, false otherwise



equals
public boolean equals(Object object)(Code)
Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison.
Parameters:
  object - Object the object to compare with this object. boolean true if the object is the same as thisobject false if it is different from this object.
See Also:   Collection.hashCode



hashCode
public int hashCode()(Code)
Answers an integer hash code for the receiver. Objects which are equal answer the same value for this method. the receiver's hash
See Also:   Collection.equals



isEmpty
public boolean isEmpty()(Code)
Answers if this Collection has no elements, a size of zero. true if this Collection has no elements, false otherwise
See Also:   Collection.size



iterator
public Iterator<E> iterator()(Code)
Returns an instance of Iterator that may be used to access the objects contained by this collection. an iterator for accessing the collection contents



remove
public boolean remove(Object object)(Code)
Removes the first occurrence of the specified object from this Collection.
Parameters:
  object - the object to remove true if this Collection is modified, false otherwise
exception:
  UnsupportedOperationException - when removing from this Collection is not supported



removeAll
public boolean removeAll(Collection collection)(Code)
Removes all occurrences in this Collection of each object in the specified Collection.
Parameters:
  collection - the Collection of objects to remove true if this Collection is modified, false otherwise
exception:
  UnsupportedOperationException - when removing from this Collection is not supported



retainAll
public boolean retainAll(Collection collection)(Code)
Removes all objects from this Collection that are not also found in the contents of collection.
Parameters:
  collection - the Collection of objects to retain true if this Collection is modified, false otherwise
exception:
  UnsupportedOperationException - when removing from this Collection is not supported



size
public int size()(Code)
Returns a count of how many objects are contained by this collection. how many objects are contained by this collection



toArray
public Object[] toArray()(Code)
Answers a new array containing all elements contained in this Collection. an array of the elements from this Collection



toArray
public T[] toArray(T[] array)(Code)
Answers an array containing all elements contained in this Collection. If the specified array is large enough to hold the elements, the specified array is used, otherwise an array of the same type is created. If the specified array is used and is larger than this Collection, the array element following the collection elements is set to null.
Parameters:
  array - the array an array of the elements from this Collection
exception:
  ArrayStoreException - when the type of an element in this Collection cannot bestored in the type of the specified array



www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.