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Static method overriding

 
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Do you think the program compiles ?

Strange! ExcepDemo doesn't inherit Base's
amethod() method because it is a static method.
Both the amethod() methods in superclass and
subclass have nothing to do with each other.
Why does the static amethod() method in ExcepDemo
have the obligation to follow those rules of
exception-throwing declaration during inheritance ?
 
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Static methods are not overridden but hidden.
From JLS 8.4.6.3 Requirements in Overriding and Hiding:


If a method declaration overrides or hides the declaration of another method, then a compile-time error occurs if they have different return types or if one has a return type and the other is void. Moreover, a method declaration must not have a throws clause that conflicts (�8.4.4) with that of any method that it overrides or hides; otherwise, a compile-time error occurs.

 
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I think that an good rule to remember here is that the Java compiler will try to make sure that the programmer doesn't do things that will prevent the use of inheritance. If a subclass hides a static method in the superclass with a method that has a different throws clause or return type, then code that uses the super class might not compile or run when the subclass is used in place of the superclass.
 
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