1.foreach循环遍历
for (Object object : list) {
System.out.print(object+" ");
}
2.Iterator迭代器遍历
Iterator iterator = list.iterator();
while (iterator.hasNext()) {
System.out.print(iterator.next()+" ");
}
3.ListIterator迭代器遍历
ListIterator iterator2 = list.listIterator();
while (iterator2.hasNext()) {
System.out.print(iterator2.next()+" ");
}
ListIterator迭代器具有向前遍历的方法,以及在迭代位置添加对象的方法
iterator2.add(4);
while(iterator2.hasPrevious()) {
System.out.print(iterator2.previous()+" ");
}