Why annotation @Override is needed when you redefine (or realize) methods?
Explanation
The predefined @Override annotation is used to detect logical errors during the compilation. In this annotation is desirable to mark each method that will override a method from a superclass or implement a method from the interface. If in a superclass or in the interface, there is no method with the same signature, there is a compilation error. This makes it easy to identify situations where a superclass or interface has been removed or altered signature overlapped method.

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