The Java Collections Framework is a set of classes in java.util for storing collections. There are four main interfaces in the Java Collections Framework: List: A list is an ordered collection of ...

The Set interface inherits its methods from Collection (java.util.Collection) and contains only those methods. In addition to sets, there are queues (java.util.Queue) and maps (java.util.Map).

At the base of the Framework are the interfaces java.util.Collection and java.util.Map. The Collection interface represents just a group of objects, with no particular order or restriction.

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Java’s collections like arrays and lists are foundational building blocks. Functional programming techniques are at times the ideal way to work with these collections. This article gives a tour ...

Have you ever wondered why the java.util.Collections class includes various “empty” class methods, which return immutable empty collections and immutable empty iterators? This post answers ...