list是一个ArrayList的对象,哪个选项的代码填到//todo delete处,可以在Iterator遍历的过程中正确并安全的删除一个list中保存的对象?()
Iterator it = list.iterator(); int index = 0; while (it.hasNext()) { Object obj = it.next(); if (needDelete(obj)) //needDelete返回boolean,决定是否要删除 { //todo delete } index ++; }