Thread: Unexpected Behaviour of ArrayList

import java.util.*;
class ArrayListDemo2
{
public static void main(String args[])
{
ArrayList al=new ArrayList();
al.add("one");
al.add("two");
al.add("three");
al.add("four");
for(int i=0;i<al.size();i++)
{
System.out.println(al.remove(i));
}
}
}

Expected Output:-

one
two
three
four

But I got

one
three

What is the reason for this output?
How to get my expected output?

import java.util.*;
public class arraylistDemo2 {
public static void main(String args[])
{
ArrayList al=new ArrayList();
al.add("one");
al.add("two");
al.add("three");
al.add("four");
Iterator i=al.iterator();
while(i.hasNext())
{
System.out.println(i.next());
}
}



}

output:
one
two
three
four


hi i have some idea about that,iterator is used to travelling a object so you can use extact contain in arraylist
if it is wrong sorry

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