A classe Object

Superclass of all classes:

• Object is the implicit superclass of all classes in Java.
• All classes inherit from Object, so a reference variable of type Object can reference any object or array.

Methods defined in the Object class:

• The following are the main methods provided by the Object class:
• Object clone(): Creates a new object identical to the original object.
• boolean equals(Object object): Checks whether two objects are equal.
• void finalize(): Called before an unused object is recycled (garbage collected).
• Class getClass(): Returns the object's class at run time.
• int hashCode(): Returns the hash code associated with the object.
• void notify(): Resumes the execution of a thread that is waiting on the object.
• void notifyAll(): Resumes the execution of all threads waiting on the object.
• String toString(): Returns a string that describes the object.
• void wait() / void wait(long milliseconds) / void wait(long milliseconds, int nanoseconds): Makes the object wait until another thread notifies.

Final methods:
The getClass(), notify(), notifyAll() and wait() methods are declared final and cannot be overridden.

Frequently overwritten methods:
equals(Object object): Compares two objects and returns true if they are equivalent.
toString(): Returns a textual description of the object. Automatically called when printing an object with println().

Use of generics in the getClass() method:

• The return syntax of the getClass() method uses generic types, which allow the data type of a class or method to be parameterized.
• The Object class offers a set of essential methods that can be used or overridden in any Java class, allowing the basic behavior of any object.

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