Item (Arraylist property): Difference between revisions
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{{Template:Arraylist:Item subtitle}} | {{Template:Arraylist:Item subtitle}} | ||
[[Category:Arraylist methods|Item property]] | [[Category:Arraylist methods|Item property]] | ||
<!--DPL?? Category:Arraylist methods|Item property: Return or set Arraylist item value--> | <!--DPL?? Category:Arraylist methods|<var>Item</var> property: Return or set Arraylist item value--> | ||
<p> | <p> | ||
Item is a member of the [[Arraylist class]]. | <var>Item</var> is a member of the [[Arraylist class]]. | ||
</p> | </p> | ||
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==Usage notes== | ==Usage notes== | ||
<ul> | <ul> | ||
<li>The <tt>Item</tt> keyword is not required. | <li>The <tt><var>Item</var></tt> keyword is not required. | ||
For instance, in the For loop in the | For instance, in the For loop in the | ||
[[Arraylist class]] example, <tt>print %alist(%i)</tt> is equivalent to: | [[Arraylist class]] example, <tt>print %alist(%i)</tt> is equivalent to: | ||
<pre style="xmp"> | <pre style="xmp"> | ||
print %alist:Item(%i) | print %alist:<var>Item</var>(%i) | ||
</pre> | </pre> | ||
<li>Methods are available to retrieve or seet the first or just the last item in | <li>Methods are available to retrieve or seet the first or just the last item in | ||
Revision as of 23:58, 19 January 2011
Return or set Arraylist item value (Arraylist class)
Item is a member of the Arraylist class.
This ReadWrite property returns or sets the indicated item in the Arraylist.
For additional description of this method, see Coding considerations for collections.
Syntax
%currentItem = al:Item( number) al:Item( number) = newItem
Syntax terms
| %item | A variable of the same type as specified on the %arrayl declaration to contain the value of the specified %arrayl item. Or a variable or value of the same type as specified on the %arrayl declaration to be assigned to the specified %arrayl item. |
|---|---|
| %arrayl | An Arraylist object. |
| number | A whole number greater than 0 to identify an %arrayl item by its position in the arraylist. If number is greater than the number of items in the %arrayl, or if it is less than or equal to zero, the request is cancelled. |
Usage notes
- The Item keyword is not required.
For instance, in the For loop in the
Arraylist class example, print %alist(%i) is equivalent to:
print %alist:<var>Item</var>(%i)
- Methods are available to retrieve or seet the first or just the last item in an Arraylist. See FirstItem and LastItem.