Can I use object type in Java?

A Java object is a member (also called an instance) of a Java class . Each object has an identity, a behavior and a state. The state of an object is stored in fields (variables), while methods (functions) display the object’s behavior. Objects are created at runtime from templates, which are also known as classes.

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i.e. you can use the declared type of Object to refer to every single item in the type system, even primitives using their wrapper classes . Java needs to run on every platform that exists (be it mobile, Windows, Linux, etc.)

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