Comparing overloads and Overrides for Java methods

	Overloading (overload)	Overwrite (override)
Concept	Multiple methods of the same name that exist in the same class, with the same return value type and a different argument list	A derived class redefined a method with the same name as a base class method, with the same return value type and argument list, except that the behavior is different
where it appears	In the same class	In different classes that have an inheritance relationship
return value type	Same	Same
Parameter list	Different number of parameters or different parameter types	Same
Characteristics	Regardless of the return value type, focus only on the parameter list	(1) A derived class method can assign the same or greater access rights as a base class method (2) A derived class cannot overwrite a base class method that is marked final (3) A derived class method can throw an exception, subclass exception, run-time exception, or error that is the same as a base class method, but cannot throw a new exception or superclass exception
Application Scenarios	Perform the same task and just enter a different scene, using the same name method for easy reading	Scenarios in which inheritance behavior needs to be redefined are often the primary purpose of using inheritance relationships

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Comparing overloads and Overrides for Java methods