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Java collections framework
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<p>The <a href="/facts/Java_/9ScgFyAL">Java</a> collections framework is a set of <a href="/facts/Class_(computer_science)/zvzkSAtE">classes</a> and <a href="/facts/Interface_(java)/6TmqUypv">interfaces</a> that implement commonly reusable collection <a href="/facts/Data_structure/yNsNvL1I">data structures</a>. </p><p>Although referred to as a <a href="/facts/Software_framework/EWasA8sG">framework</a>, it works in a manner of a <a href="/facts/Library_(computing)/xRzL3P7q">library</a>. The collections framework provides both interfaces that define various collections and classes that implement them. </p>