ArrayList 및 Iterator 사용 방법

import java.util.ArrayList;

import java.util.Iterator;

public class ArrayListTest {

public static void main(String[] args)

{

ArrayList<Object> al=new ArrayList<Object>();

al.add("aaa");

al.add("bbb");

al.add(1);

al.add(222);

al.add(true);

System.out.println(al.size());

for(Iterator<Object> itr=al.iterator();itr.hasNext();)

{

Object ele=itr.next();

System.out.println(ele.toString());



}



}

}