例子:如 ArrayList 就是接口 List 的实现类
package Jie;
import java.util.ArrayList;
import java.util.List;
public class ok {
public static void main(String[] args) {
List<String> list = new ArrayList<>();
List<String> result = addNames(list);
for (int i = 0; i < result.size(); i++) {
System.out.println(result.get(i));
}
}
public static List<String> addNames(List<String> list) {
list.add("钟添逸");
list.add("邓宇轩");
list.add("黎卓武");
list.add("梁正军");
return list;
}
}