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generics problem

 
Ranch Hand
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Can any body explain me this code :
V extends BizObj & Service
V extends BizObj & Service & Async

Thanks a lot .
 
Sheriff
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The syntax for specification of type parameter bounds is:

TypeParameter extends Class & Interface1 & ... & InterfaceN

A list of bounds consists of one class and/or several interfaces.


SOURCE: http://www.langer.camelot.de/GenericsFAQ/FAQSections/TypeParameters.html#Bounds
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