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<th scope="row">Name</th>

<td><h3>HashMap</h3></td>

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<th scope="row">Examples</th>

<td><div class="example"><pre>HashMap hm = new HashMap();

hm.put("Ava", 1);

hm.put("Cait", 35);

hm.put("Casey", 36);

Iterator i = hm.entrySet().iterator(); // Get an iterator

while (i.hasNext()) {

Map.Entry me = (Map.Entry)i.next();

print(me.getKey() + " is ");

println(me.getValue());

}</pre></div></td>

</tr>

<tr class="">

<th scope="row">Description</th>

<td><p>A <b>HashMap</b> stores a collection of objects, each referenced by a key. This is similar to an <b>Array</b>, only instead of accessing elements with a numeric index,

a <b>String</b> is used. (If you are familiar with associative arrays from other languages, this is the same idea.)

The above example covers basic use, but there's a more extensive example included with the Processing examples. </p>

<p>For a list of the numerous HashMap features, please read the <a href="http://download.oracle.com/javase/1.4.2/docs/api/java/util/HashMap.html">Java reference description</a>.</p></td>

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<tr class="">

<th scope="row">Constructor</th>

<td><pre>HashMap()</pre><br>

<pre>HashMap(<kbd>initialCapacity</kbd>)</pre><br>

<pre>HashMap(<kbd>initialCapacity</kbd>,<kbd>loadFactor</kbd>)</pre><br>

<pre>HashMap(m)</pre><br>

</td>

</tr>

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<th scope="row">Parameters</th>

<td>

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<th scope="row">initialCapacity</th>

<td>int: defines the initial capacity of the map, it's 16 by default</td>

</tr>

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<th scope="row">loadFactor</th>

<td>float: the load factor for the map, the default is 0.75</td>

</tr>

<tr class="">

<th scope="row">m</th>

<td>Map: gives the new HashMap the same mappings as this Map

</tr>

</table>

</td>

</tr>

<tr class="">

<th scope="row">Usage</th>

<td>Web & Application</td>

</tr>