1) Class 2) Package 3) Interfaces 4) Objects

cirrus

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• Feb 19th, 2012

Java packages do not contain objects. This is so, because unlike classes, interfaces, and sub-packages, Java objects are instantiated entities, and do not always exist.

Neha Gupta

• Feb 17th, 2012

Objects. This is because package does contain interfaces like Serializable. Classes and other sub-packages or packages always fall under package.

Object class does fall under java.lang package but Objects are created when any concrete class is instantiated.

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