创建与得到ArrayList

import java.util.ArrayList;

public class CreateAndGet {

public static void main(String[] args) {
    // TODO Auto-generated method stub
    ArrayList arrayList = new ArrayList();
       
    arrayList.add("1");
    arrayList.add("2");
    arrayList.add("3");
   
    System.out.println("Getting elements of ArrayList");
    System.out.println(arrayList.get(0));
    System.out.println(arrayList.get(1));
    System.out.println(arrayList.get(2));
}

}
Console：
Getting elements of ArrayList
1
2
3