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{{Template:Arraylist:Add subtitle}}
{{Template:Arraylist:Add subtitle}}
[[Category:Arraylist methods|Add function]]
This [[Notation conventions for methods#Callable functions|callable]] function adds an item to the end of an <var>Arraylist</var>.
<!--DPL?? Category:<var>Arraylist</var> methods|<var>Add</var> function: <var>Add</var> <var>Arraylist</var> item-->
<p>
<var>Add</var> is a member of the [[Arraylist class]].
</p>


==Syntax==
==Syntax==
{{Template:Arraylist:Add syntax}}
{{Template:Arraylist:Add syntax}}
===Syntax terms===
===Syntax terms===
<table class="syntaxTable">
<table class="syntaxTable">
<tr><th><i>%num</i></th>
<tr><th>%count</th>
<td>A numeric variable to contain the number of items in the indicated <var>Arraylist</var> after the item has been added. ''%num'' is also the item number associated with the added item in the <var>Arraylist</var>. </td></tr>
<td>An, optional, numeric variable that returns the number of items in the indicated <var>Arraylist</var> after the items have been added. <var class="term">%count</var> is also the item number associated with the last or only added item in the <var>Arraylist</var>. </td></tr>
<tr><th><i><var class="term">al</var></i></th>
 
<tr><th>al</th>
<td>An <var>Arraylist</var> object. </td></tr>
<td>An <var>Arraylist</var> object. </td></tr>
<tr><th><i>item</i></th>
 
<td>A value or variable of the same type as specified on the ''<var class="term">al</var>'' declaration, or a value or variable convertible to that type.</td></tr>
<tr><th>itemList</th>
<td>Under <var class="product">Sirius Mods</var> 7.9 and later, this is a comma-delimited set of a combination of one or more of these: 
<ul>
<li>Values or variables of the same type as specified on the <var class="term">al</var> declaration
<li>Collections of objects of the same type as specified on the <var class="term">al</var> declaration
</ul>
 
Each of these, from left to right, becomes an item or items in the method object <var>Arraylist</var>.
 
Under <var class="product">Sirius Mods</var> 7.8 and earlier, <var class="term">itemList</var> is only a single item to be added to <var class="term">al</var>: a value or variable of the same type as specified on the <var class="term">al</var> declaration, or a value or variable convertible to that type.</td></tr>
</table>
</table>
==Usage notes==
==Usage notes==
<ul><li>The <var>[[Push (Arraylist function)|Push]]</var> and <var>[[Enqueue (Arraylist function)|Enqueue]]</var> functions are the same as the <var>Add</var> function, with the exception that <var>Push</var> and <var>Enqueue</var> can only add a single item to the target <var>Arraylist</var>, while (under <var class="product">Sirius Mods</var> 7.9 and later) <var>Add</var> can add many items to the target <var>Arraylist</var>:
<ul>
<ul>
<li>For examples of <var>Add</var> calls, see [[Arraylist class]].
<li><var>Push</var> was designed as a convenience for use with the <var>[[Pop (Arraylist function)|Pop]]</var> function.
<li>The [[Push (Arraylist function)|Push]] and
<li><var>Enqueue</var> was designed as a convenience for use with the <var>[[Dequeue (Arraylist function)|Dequeue]]</var> function.
[[Enqueue (Arraylist function)|Enqueue]] functions are the same as the <var>Add</var> function:
</ul></ul>
<ul>
 
<li>Push was designed as a convenience for use with the [[Pop (Arraylist function)|Pop]] function.
==Examples==
<li>Enqueue was designed as a convenience for use with the
For more examples of <var>Add</var> calls, see [[Arraylist class|"Arraylist class"]].
[[Dequeue (Arraylist function)|Dequeue]] function.
 
</ul>
====Adding numbers to an Arraylist====
</ul>
In the following example, a literal number, a numeric variable and another <var>Arraylist</var> of numbers is added to an <var>Arraylist</var>:
<p class="code">b
 
%nums    is arraylist of float
%perfect  is float
%primes  is arraylist of float
 
%nums = list(0, 1)
%perfect = 6
%primes  = list(2, 3, 5, 7, 11, 13, 17, 23)
 
%nums:add(16, %perfect, %primes)
%nums:print
 
end
</p>
This outputs:
<p class="output">1: 0
2: 1
3: 16
4: 6
5: 2
6: 3
7: 5
8: 7
9: 11
10: 13
11: 17
12: 23
</p>
 
====Adding objects to an Arraylist====
In the following example, a new object, an object variable and another <var>Arraylist</var> of objects is added to an <var>Arraylist</var>:
<p class="code">b
 
class coordinate
  public
      constructor new(%x is float, %y is float)
      function toString is longstring
      variable x is float
      variable y is float
  end public
  constructor new(%x is float, %y is float)
      %this:x = %x; %this:y = %y
  end constructor
  function toString is longstring
      returnText coordinate: x={%x}, y={%y}
  end function
end class
 
%points    is arraylist of object coordinate
%where    is object coordinate
%locations is arraylist of object coordinate
 
%points    = list(new(6, 9), new(-4, 3))
%where    = new(17, -3)
%locations = list(new(1, 1), new(2, 5), new(3, 11))
 
%points:add(new(4, 3), %where, %locations)
 
%points:print
 
end
</p>
This outputs:
<p class="output">1: coordinate: x=6, y=9
2: coordinate: x=-4, y=3
3: coordinate: x=4, y=3
4: coordinate: x=17, y=-3
5: coordinate: x=1, y=1
6: coordinate: x=2, y=5
7: coordinate: x=3, y=11
</p>
 
==See also==
{{Template:Arraylist:Add footer}}

Latest revision as of 15:25, 1 November 2012

Add Arraylist items (Arraylist class)

This callable function adds an item to the end of an Arraylist.

Syntax

[%count =] al:Add( itemList)

Syntax terms

%count An, optional, numeric variable that returns the number of items in the indicated Arraylist after the items have been added. %count is also the item number associated with the last or only added item in the Arraylist.
al An Arraylist object.
itemList Under Sirius Mods 7.9 and later, this is a comma-delimited set of a combination of one or more of these:
  • Values or variables of the same type as specified on the al declaration
  • Collections of objects of the same type as specified on the al declaration

Each of these, from left to right, becomes an item or items in the method object Arraylist.

Under Sirius Mods 7.8 and earlier, itemList is only a single item to be added to al: a value or variable of the same type as specified on the al declaration, or a value or variable convertible to that type.

Usage notes

  • The Push and Enqueue functions are the same as the Add function, with the exception that Push and Enqueue can only add a single item to the target Arraylist, while (under Sirius Mods 7.9 and later) Add can add many items to the target Arraylist:
    • Push was designed as a convenience for use with the Pop function.
    • Enqueue was designed as a convenience for use with the Dequeue function.

Examples

For more examples of Add calls, see "Arraylist class".

Adding numbers to an Arraylist

In the following example, a literal number, a numeric variable and another Arraylist of numbers is added to an Arraylist:

b %nums is arraylist of float %perfect is float %primes is arraylist of float %nums = list(0, 1) %perfect = 6 %primes = list(2, 3, 5, 7, 11, 13, 17, 23) %nums:add(16, %perfect, %primes) %nums:print end

This outputs:

1: 0 2: 1 3: 16 4: 6 5: 2 6: 3 7: 5 8: 7 9: 11 10: 13 11: 17 12: 23

Adding objects to an Arraylist

In the following example, a new object, an object variable and another Arraylist of objects is added to an Arraylist:

b class coordinate public constructor new(%x is float, %y is float) function toString is longstring variable x is float variable y is float end public constructor new(%x is float, %y is float) %this:x = %x; %this:y = %y end constructor function toString is longstring returnText coordinate: x={%x}, y={%y} end function end class %points is arraylist of object coordinate %where is object coordinate %locations is arraylist of object coordinate %points = list(new(6, 9), new(-4, 3)) %where = new(17, -3) %locations = list(new(1, 1), new(2, 5), new(3, 11)) %points:add(new(4, 3), %where, %locations) %points:print end

This outputs:

1: coordinate: x=6, y=9 2: coordinate: x=-4, y=3 3: coordinate: x=4, y=3 4: coordinate: x=17, y=-3 5: coordinate: x=1, y=1 6: coordinate: x=2, y=5 7: coordinate: x=3, y=11

See also