Can someone explain what does <? super T> mean and when should it be used and how this construction

Posted by Roman on Stack Overflow See other posts from Stack Overflow or by Roman
Published on 2010-02-22T11:11:58Z Indexed on 2010/04/05 13:13 UTC
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java

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generics

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c#

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generic-programming

I'm using generics rather long time but I've never used construction like List<? super T>.

What does it mean? How to use it? How does it look after erasure?

I also wonder: is it something standard in generic programming (template programming?) or it's just a java 'invention'? Does c#, for example, allow similar constructions?

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