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key word static against constructor

Siva kandasamy
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Joined: Dec 31, 2002
Posts: 139
Hi there,
Why I can not have key word static against the constructor.

thanks
siva
Dave Vick
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Joined: May 10, 2001
Posts: 3244
Siva
From the JLS 8.8.3:
Unlike methods, a constructor cannot be abstract, static, final, native, strictfp, or synchronized. A constructor is not inherited, so there is no need to declare it final and an abstract constructor could never be implemented. A constructor is always invoked with respect to an object, so it makes no sense for a constructor to be static.

If yout think about it, it makes sense. A static method is a class method is invoked without there having to be an specific object against which it is called. In other words, in an instance method there is a 'this' object that you can use to refer to the object against which the method was invoked. In a static method there is no 'this' because it is a class method not an instance method.
A constructor is more like a special case of an instance method, it has a 'this' reference in it, where 'this' refers to the object that is being created.
Hope that helps


Dave
Siva kandasamy
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Joined: Dec 31, 2002
Posts: 139
Thanks You Dave.
-siva
 
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