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| package Generics_package4; | |
| public class Generics_demo4 { | |
| public static void main(String[] args) { | |
| /* | |
| 泛型接口的两种使用方式: | |
| 1、实现类给出具体的类型 | |
| 2、实现类延续泛型,创建实现类对象时再确定类型 | |
| */ | |
| MyArrayList2 list = new MyArrayList2(); | |
| list.add("123"); | |
| MyArrayList3<String> list2=new MyArrayList3<>(); | |
| list2.add("234"); | |
| } | |
| } | |