java - 扩展或等于的通用语法

Question

GenericExample<ItemType (extends or equal to) Object> 在 Java 中的语法如何？

谢谢，亚当。

更新:

感谢您的所有回复。这里的回答更多的是代码中泛型的使用，我想讨论一下减速实现，例如:

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...

亚当。

Answer 1

你已经知道了:

GenericExample<ItemType extends MyObject>

关于泛型的第一份指南可以在这里找到:http://download.oracle.com/javase/1.5.0/docs/guide/language/generics.html