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Why can't declare a Static method in Interface?

 
Greenhorn
Posts: 18
Eclipse IDE Java Linux
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Hi,

1) Please give me a reason why we can't declare a static method in Interfaces. and,
2) Why member variables in interface are Static and Final?

Thanks..
 
Ranch Hand
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Hi Mihir,
Static methods must have bodies. The methods in interfaces don't have bodies, and are thus not static methods. They are actually public abstract methods.
 
Marshal
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. . . and public abstract methods must be implemented in a subclass, which you can only do for instance methods, so they can't be static.
 
Mihir Patel
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Thanks Ananth and Ritchi...

Please someone answer me for the below 2nd question in this post.

2) Why member variables in interface are Static and Final?

Thanks.
 
Ranch Hand
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Mihir Patel wrote:
Why member variables in interface are Static and Final?


Interface cant be instantiated, so variable must assigned to a value in static context and it is final because, variables in interface are constant!
 
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Anything other than constants - which is effectively what static, final variables are, are implementation details. And interfaces don't contain any implementation.
 
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