Arraylist class: Difference between revisions
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Arraylists can be thought of as traditional arrays with no bounds and | Arraylists can be thought of as traditional arrays with no bounds and | ||
much more flexibility. | much more flexibility. | ||
The following code illustrates several of the Arraylist methods: | The following code illustrates several of the Arraylist methods: | ||
< | <p class="code"> | ||
%alist is collection Arraylist of longstring | |||
%i is float | |||
%alist = new | |||
%alist:add('Idle') | |||
%alist:add('Gumby') | |||
%alist:add('Chapman') | |||
%alist:add('Pallin') | |||
%alist:insert(2, 'Jones') | |||
%alist:removeItem(4) | |||
%alist(3) = 'Cleese' | |||
for %i from 1 to %alist:count | |||
print %alist(%i) | |||
end for | |||
</ | </p> | ||
This code snippet would print: | This code snippet would print: | ||
< | <p class="output"> | ||
Idle | |||
Jones | |||
Cleese | |||
Pallin | |||
</ | </p> | ||
The individual Arraylist methods are described in the following subsections. | The individual <var>Arraylist<var> methods are described in the following subsections. | ||
In the method templates, < | In the method templates, <var class="term">al</var> is used to represent the object | ||
to which the method is being applied, sometimes called the | to which the method is being applied, sometimes called the "method object" | ||
object | or the "method Arraylist". | ||
or the | |||
Additional conventions are described in [[Notation conventions for methods]]. | Additional conventions are described in [[Notation conventions for methods]]. | ||
==See also== | |||
<table> | |||
<tr><th>[[List of Arraylist methods]]</th> | |||
<td>For a list of all methods in the Arraylist class, with a brief description of each.</td></tr> | |||
<tr><th>[[Collections]]</th> | |||
<td>For background information about collections and <var>Arraylist</var>s and about | |||
declaring <var>Arraylist</var> object variables.</td></tr> | |||
<tr><th>[[Collections#Coding considerations for collections|Coding | |||
considerations for collections]]</th> | |||
<td>For tips on using collections.</td></tr> | |||
</table> | |||
[[Category:System classes]] | [[Category:System classes]] |
Revision as of 11:57, 27 January 2011
Arraylists can be thought of as traditional arrays with no bounds and much more flexibility.
The following code illustrates several of the Arraylist methods:
%alist is collection Arraylist of longstring %i is float %alist = new %alist:add('Idle') %alist:add('Gumby') %alist:add('Chapman') %alist:add('Pallin') %alist:insert(2, 'Jones') %alist:removeItem(4) %alist(3) = 'Cleese' for %i from 1 to %alist:count print %alist(%i) end for
This code snippet would print:
Idle Jones Cleese Pallin
The individual Arraylist methods are described in the following subsections. In the method templates, al is used to represent the object to which the method is being applied, sometimes called the "method object" or the "method Arraylist". Additional conventions are described in Notation conventions for methods.
See also
List of Arraylist methods | For a list of all methods in the Arraylist class, with a brief description of each. |
---|---|
Collections | For background information about collections and Arraylists and about declaring Arraylist object variables. |
Coding considerations for collections | For tips on using collections. |