Java语言中姐种遍历List的方法总结

遍历 List 的方法:
1. for
2. advanced for
3. Iterator
4. while
5. ListIterator 

List<E> list 

1. for
for (int i = 0; i < list.size(); i++) {
    E element = list.get(i);
} 

2. advanced for
for (E element : list) { 

} 

3. Iterator
for (Iterator<E> iter = list.iterator(); iter.hasNext(); ) {
    E element = iter.next();
} 

4. while
while (i < list.size()) {
    E element = list.get(i);
    i++;
} 

5. ListIterator
for (ListIterator<E> iterator = list.listIterator(); iterator.hasNext(); ) {
    E element = iterator.next();
}

　　

Java遍历List四种方法的效率对比