ArrayList生成动态数组列表

import java.util.*;public class ArrayListTest{public static void main(String args[]){ArrayList array=new ArrayList();array.add("I");array.add("love");array.add("You");array.add("Forever");System.out.print(array.get(0)+" "+array.get(1)+" "+array.get(2)+" "+array.get(3));//这样的输出方式太繁琐了，因为是多态的引用方式，所以直接打印对象变量，调用String类的toString 方法System.out.println();array.remove(3);array.add(3,"!");System.out.print(array.get(0)+" "+array.get(1)+" "+array.get(2)+" "+array.get(3));array.add(4,"believe");System.out.println(array);}}