Each application of this generic class would extend a distinct parent class.
这个泛型类的每个应用都会继承一个不同的父类。
For example, a generic class JSplitPane may create an instance of Scrollable.
例如，泛型类JSplitPane可以创建Scrollable的实例。
Again, that's because one generic class may instantiate another with its own type parameters.
再提一次，那是因为一个泛型类可以用其自己的类型参数来实例化另一个泛型类。
We recommend that you define a generic class when you want to ensure type safety.
我们建议在需要确保类型安全时定义泛型类。
We recommend that you define a generic class when you want to ensure type safety.
我们建议在需要确保类型安全时定义泛型类。
应用推荐