<div>
&gt;&gt;A Set is simply a container for unique objects<br />
<br />
could you explain this one
</div>


>>A Set is simply a container for unique objects

could you explain this one

<div>
Think of it as a list that can only contain unique objects as dictated by their equals method<br />

</div>


Think of it as a list that can only contain unique objects as dictated by their equals method


<div>
A map has a pair for example<br />
(key, object). <br />
With key you can get the object <br />
<br />
A set is just the object (object) just one.
</div>


A map has a pair for example
(key, object).
With key you can get the object

A set is just the object (object) just one.

<div>
&gt;&gt;Set s = new HashSet ( al ) ;<br />
<br />
so this would avoid the duplicate values in array list
</div>


>>Set s = new HashSet ( al ) ;

so this would avoid the duplicate values in array list

<div>
The array list will still contain those duplicates, the set will not.
</div>


The array list will still contain those duplicates, the set will not.

<div>
<a href="http://mindprod.com/jgloss/hashset.html" rel="ugc">http://mindprod.com/jgloss/hashset.html</a>
</div>


http://mindprod.com/jgloss/hashset.html [http://mindprod.com/jgloss/hashset.html]

<div>
<div class="content wysiwyg-content">
Difference between Map and Set
</div>
</div>


Difference between Map and Set

Java is a platform-independent, object-oriented programming language and run-time environment, designed to have as few implementation dependencies as possible such that developers can write one set of code across all platforms using libraries. Most devices will not run Java natively, and require a run-time component to be installed in order to execute a Java program.