扩展等于的通用语法 [英] Generic syntax for extends or equal to

问题描述

GenericExample< ItemType(扩展或等于)Object >在Java中的语法如何?

How is the syntax in Java for GenericExample<ItemType (extends or equal to) Object>?

谢谢， 亚当.

更新:

感谢您的所有答复. 这里的答案与代码中泛型的使用有关，我想讨论一下减速的实现，例如:

Thanks for all your replies. The answers here are more related to the use of the generics in code, I would like to discuss the deceleration implementation, for example:

class GenericExample<ItemType (extends or equal to) ParentType> {
}

class Inherited<ParentType> extends GenericExample<ParentType> {
    /* The type parameter in this class does not compile.
       I would like to find a work around to make something like this to work. 
       I would like to have ParentType=JComponent , and thus to specify that the  
       Inherited class uses JComponent for needed flexibility*/
}

我希望这更有意义...

I hope this makes more sense...

亚当.

推荐答案

您已经知道了:

GenericExample<ItemType extends MyObject>

可以在此处找到有关泛型的第一指南: http://download.oracle.com/javase/1.5.0/docs/guide/language/generics.html

A first guide on generics can be found here: http://download.oracle.com/javase/1.5.0/docs/guide/language/generics.html

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