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Java problem: Definition of class, definition of object?

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Java problem: Definition of class, definition of object? 
A class is a collection of data and functions, only an abstract concept, which is the function of generating objects, which, after generating objects, is a piece of storage for the object, and the class can generate an infinite number of objects, each with its own storage, and the data and functions defined in the class are in this object.
In Java, an object is an entity of a class.

Java problem: Definition of class, definition of object?

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