Ask questions about grammar symbol is what is meant by

@ Interface MyScrollView: UIScrollView

When asked at the flower I know the meaning of inherited colon is MyScrollView inherit UIScrollView, may I ask what the meaning behind the ah? Is the meaning of <> the symbol of
Please do not joke sister ah.
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To achieve an agreement, similar to the interface implemented in java.
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Press C + + syntax to understand, UIScrollView is a template class, is a template class UIScrollView implementation type parameter T.

object c syntax, that I think should be similar in this sense. But I did not specifically confirm.
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Thank you, I searched the second floor next to the relevant information
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Not the slightest relationship with the template
1st floor right
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Objective-C have a look at it first
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Obediently protocol did not know it can be developed? ? ?
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Agreement on behalf of inherited UIScrollViewDelegate
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Big Brother first to buy the book Objective c to look and see. Otherwise, the class met again when asked.
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Similar to the java implements
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XXX follow protocol
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Protocol is doing?
Popular speaking under you?

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Generally refers to a callback. And c inside almost the same function pointer