脚本宝典收集整理的这篇文章主要介绍了Java 泛型，脚本宝典觉得挺不错的，现在分享给大家，也给大家做个参考。
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Object & <?> & <T>
<T> T
public static <T> List<T> backwards (List<? super T> input) { List<T> output = new ArrayList<T>(); return output; }<T>I'm declaring an arbitrary @H_777_69@type T for this method, which can be anything (non-PRimitive) for each call of the method.List<T>This method will return a List containing elements of that type T.List<? super T> inputThis method will take a parameter called input, which is a List containing elements of type T, or any super-type of T. For example, if T is Integer, input could be a List<Integer>, List<Number>, or List<Object>." public static <T> List<T> ->> public static List<T>public static List<T> doesn't declare a type parameter, and so must already be in the scope of a generic type parameter T on the declaring class 以上是脚本宝典为你收集整理的Java 泛型全部内容，希望文章能够帮你解决Java 泛型所遇到的问题。
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