Iterator遍历过程中list删除导致异常

import java.util.ArrayList; import java.util.Arrays; import java.util.Iterator; import java.util.List; public class MyIterator { List<String> list = new ArrayList<String>(5); public void add() { list.addAll(Arrays.asList("1", "2", "3", "4", "5")); } public static void main(String args[]) { MyIterator myIt = new MyIterator(); myIt.add(); Iterator<String> iter = myIt.list.iterator(); int i = 0; while (iter.hasNext()) { String s = (String) iter.next(); System.out.println("" + s); if (s.equals("2")) { iter.remove(); } //这一行将导致异常 java.util.ConcurrentModificationException if (s.equals("3")) { myIt.list.remove(i); } i++; } myIt.list.remove(2); System.out.println(myIt.list); } }