为什么我收到“列表的删除类型参数”错误 <String> list1 =新的ArrayList <String> （）;”

Question

i am trying to implementing ArrayList using String array.

while implementing i am getting Remove type arguments error in my eclipse .

ArrayList.java

import java.util.List;


public class ArrayList {

public static void main(String [] a)
{
    String [] things = {"eggs","chicken","milk","butter"};
    List<String> list1 =  new ArrayList<String>();

    for(String s: things)
        list1.add(s);

    String [] morethings = {"chicken","milk"};
    List<String> list2 = (List<String>) new ArrayList ();

    for(String y: morethings)
        list2.add(y);
    for(int i=0; i<list1.size();i++)
    {
        System.out.printf("%s ", list1.get(i));
    }
}
}

Answer 1

You've defined your own ArrayList which is not a generic class. To use java.util.ArrayList simply rename your class to something else other than one of Java's built-in classes

Answer 2

You have used the class java.awt.List which is used for GUI List options such as creating a drop-down list, and thus one cannot use collectibles/data structure, Iterators with such a list. You need to use java.util.List for implementing: List>= new LinkedList>();