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Genrics

 
Greenhorn
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Hi wats the use of wild cards < ?extends >, < ? super> in genrics....
 
Ranch Hand
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They are used when you to need to allow a certain group of classes that are bounded above or below.

That is if you use ? super String, then that will match String or Object.
 
Vicky Singh
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ThankXX a LOT....
 
Vicky Singh
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Can I get More Detailed Info some where on net with some detailed examples...
 
Marshal
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Welcome to the Ranch, Vicky.

Search through these fora for similar questions: try the three Java in General fora first.
In all these sorts of questions, one of the first places to look should always be the Java tutorial; it has a section about generics including the ? operator here.

CR
 
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You may refer following these two materials

1. Generics in the Java Programming Language


2.wildcard in generics


Naseem
 
Vicky Singh
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Hi,

Thankx Campbell & Naseem ....

The genrics were making my life Hell in recent past but I think NOW I can manage them.... This place is COOOOOL....

PS: Naseem ur links were real help Thanks Again.......
 
Campbell Ritchie
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Only too pleased to be able to help
 
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